New Britax Poplar S Convertible Car Seat 2-in-1 Slim 17-Inch product image (primary)
Front three-quarter view of a convertible child car seat with padded gray fabric, five-point harness, two cup holders, a front safety bar, and a plastic base with installation stickers.

Britax

New Britax Poplar S Convertible Car Seat 2-in-1 Slim 17-Inch (Stone Onyx)

4.6/5 (104)
$309.99$399.99-23%
Out of Stock

The Britax Poplar S Convertible Car Seat (Stone Onyx) is a 2-in-1 child restraint system that transitions from rear-facing (5-50 lbs) to forward-facing (30-65 lbs) with a slim 17-inch profile designed to fit three across in most vehicles. It features ClickTight seatbelt installation, a 14-position adjustable harness and headrest, SafeWash machine-washable fabrics, and a steel-reinforced frame with energy-absorbing base. Common user feedback highlights its compact fit and easy installation, while some note average crash test performance and fabric cleaning challenges.

Color
Glacier Graphite
Material
Carbon steel frame with SafeWash fabrics
Gender
unisex
Style
performance, travel-friendly
Category
Baby & Toddler > Baby Transport > Baby & Toddler Car Seats
GTIN
652182743932
MPN
BRITAX-652182743932-652182750329-NEWOVERSTOCK

Specifications

Ready to go with room to grow! The Poplar® S convertible car seat takes the stress out of moving to the next car seat stage with trusted Britax safety, ClickTight® installation, and a slim 17” design.

ReboundReduce stability bar; SpaceSaver slim 17-inch design; ClickTight installation; premium inserts; 14-position quick-adjust headrest and harness; 2 dishwasher-safe cup holders; 6-position recline; SafeCell technology; 5-point safety harness; naturally flame-retardant fabrics; carbon steel frame.

Color
Glacier Graphite · gray
Material
Carbon steel frame with SafeWash fabrics
Style
performance, travel-friendly
Occasion
everyday, travel
Gender
unisex
Age Group
toddler
Condition
new
Dimensions
20.5 x 17 x 23.5 in
Category
Baby & Toddler > Baby Transport > Baby & Toddler Car Seats

Additional Attributes

  • ClickTight installation
  • ReboundReduce stability bar
  • SpaceSaver slim 17-inch design
  • SafeCell technology
  • 5-point safety harness
  • 14-position quick-adjust headrest and harness
  • 6-position quick-adjust recline
  • Premium infant inserts
  • 2 dishwasher-safe cup holders
  • Machine washable and dryable cover
  • Naturally flame-retardant fabrics with no added FR chemicals
  • Carbon steel frame
  • Rear-facing: 5-50 lbs
  • Forward-facing: 30-65 lbs
  • Expiration: 10 years
  • Warranty: 1 year manufacturer limited

Image Analysis

1 images
New Britax Poplar S Convertible Car Seat 2-in-1 Slim 17-Inch product image (primary)
01high

Front three-quarter view of a convertible child car seat with padded gray fabric, five-point harness, two cup holders, a front safety bar, and a plastic base with installation stickers.

OCR: britax
convertible child car seatadjustable headrestpadded head cushionfive-point harness strapsharness chest padcentral buckle with red releasepadded seat insertdetachable front safety bartwo cup holders (left and right)plastic baserecline adjustment handle on basefabric upholsterycontrasting white topstitchingwarning label sticker on seat sidecolor-coded installation stickers on base

Brand PDP Lookup

Brand
Britax

Poplar® S Convertible Car Seat - Slim 17" Design

Also Seen Here

3 retailers
  • walmart.com
    high

    Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat, Slim 17-inch Design, ClickTight, Stone Onyx

    Britax

    View listing →
  • juvenileshop.com
    high

    Britax Poplar S Convertible 2-in-1 Car Seat with ClickTight – Stone Onyx

    Britax

    View listing →
  • tjskids.com
    high

    Britax Poplar S Convertible Car Seat - Stone Onyx

    Britax

    View listing →

Documents & Data

Customer Reviews

104 total
4.6

104 reviews · out of 5

Perfect snug fit

thenollgirls

I love this Convertible car seat! The color is perfect for any boy or girl, neutral gray soft and light. It fits my infant in snuggly but also converts to a toddler seat fitting my 4 year old just as nicely. This is plenty of room to grow. The quality of this car seat is great and my little one looks more comfortable in this than some other brands we tested first. The click tight is super nice making it super easy to install and uninstall if needing to move to another car. The o my reason I couldn’t give it 5 stars was because of the headrest comfort. Some other ones had head tests in both sides for stability, this one did not.

Great Seat!!!

kmc4465

This seat is a great addition to the Britax line! It has all the amazing features you’d expect, but the seats are slimmer. I love how I could fit three in a row!!! The seat is heavy, sturdy and comfortable. Easy to adjust. Will last for years!! Easy to switch from rear facing to forward facing. High quality fabric. I could go on and on. If you’re looking for a new seat you can’t go wrong here!

Safety first

shelbymarie733

This car seat is fabulous. It adds so many features the others Britax seats lack (3 across, cup holders). The Clicktight feature is the reason we bought it because ease of install is critical for safety. We returned our other slim seat as it didn’t stay tight and needed constant adjustments which is a safety issue especially in the car we let our nanny use.

Excellent option

soyoungl

I have been long fan of Britax car seat. This is a great option for your kiddos. This keeps your child longer in more sturdy car seat. The only thing is that it is ubber heavy. It’s really hard to move in and out our your car. Cover washes great but putting it back on it kind La hard. I wish it would turn 180 like nuna does. Then this will be perfect

Good car seat

raelynnm1

Im sure compared to most this car seat has its perks and cons. For the amount, i hope it will last and not fall apart or my grandson hopefully wont out grown too fast. It adjust to the childs growing needs which is a major plus. I just hope it meets up to all it hypes up to be and safety is a huge issue.

Loved it!

krystlelove

I am so happy my nephew got to try the Britax Poplar Convertible Car Seat in Cobalt Onyx. We have been dying to purchase this car seat since he was born but it was a bit pricey. He absolutely loves it. It is super comfy but most importantly, it is safe. Super easy to install. I highly recommend.

Awesome

vanessaelli

So excited to have purchased this car seat. As a first-time mom, I had no idea what car seat I should buy for my son, but doing research I came across this brand. Very nice and has amazing safety features. Easily to install and long-lasting material that will help adjust to my growing baby.

Great car seat!

barb_t

This car seat was extremely easy to install, and so far I’ve been pretty happy with it! It makes me feel secure knowing it’s keeping my newborn safe. He seems happy when he’s in it, so that’s always great as well. All in all, this is a great car seat and I’m happy that I bought it.

Very nice car seat

eyylyssa

This car seat looks cute but more importantly has great safety features. It’s heavy but that reassures me even more that it’s good high quality and god forbid anything were to happen with my babies in the car that they’d be safe.

Great car seat!

IvyH

I loved this car seat for my daughter. I’ve never heard of this brand before but I was not disappointed! It adjusts so that as she grows the car seat will grow with her! And it met all my safety concerns so that’s a plus!

Love these.

casmiller82

Great car seat. I just love them. It looks like it's comfortable. Installing was easy and adjusting. It's very durable too. I can tell this car seat will last and probably be used with multiple children in my family.

Compact seat

kschilke

We needed a backup seat to store at my in laws in case they needed to pick up my daughter in an emergency. This was a great size, and we can use it for travel as well so we don’t have to uninstall our everyday seats

Okay seat

thebraindoc

The seat is okay, unfortunately it has a weight limit and cannot be used for long term unlike many other ones on the market. The use and portability of this seat are limited and I cannot wholeheartedly reccomend it.

Great

etchybug

This car seat is great! It’s comfortable and my son loves it! It’s easy to set up and easy to take in and out of the car. The color is great too! I like how it is convertible so you get longer use out of it.

Safety

brandibellnc

The Britax Poplar Convertible Car seat is stylish and very safe. Safety is the most important thing when it comes to my children. I highly recommend this car seat. Super comfy and easy to install.

Great

kellyv7919

This is a very good car seat. It was easy to install, easy to adjust and it is very sturdy and secure. I like the dark color of this, it’s good for either gender of baby and will grow with them

Great seat!

Anonymous

We’ve bought Britax car seats in the past and although they are on the heavier side, they are wonderful! My boys are always comfortable and the seat being convertible is always a bonus!

Great car seat for transitioning out of infant car seat

jaclyna20

Great car seat with amazing safety features. Installation process was very easy. Comfort level seems to be a 5/5. Adjustability and durability of this car seat really impressed me!

Really nice

bex182

She seems super comfortable, and sturdy. Really nice equality and easy to wipe down any crumbs from baby snacks in the car. Light enough to move from car to car if need be.

Sturdy

skincareandjeans

The Britain is a sturdy car seat for my toddler. I appreciate that it is easy to install and is quite comfortable. My toddler has not complained about it, so that’s a win!

Family friendly seat

purplerain105

Working with small children I spend lots of time helping parents with car seats. This Britax car seat is easy to use and I love how sleek it looks. Perfect for the kiddos!

Like it

beccalynn14

I really like this Britax convertible car seat for my son. It's definitely an upgrade from what he was in. It's very comfortable. My son falls asleep every car ride now.

Love this

charlottebfe2e

My in-laws got this for me and I absolutely love this my 7 month old out grew the car seat stroller set and she fits in this perfectly. I would recommend this to anyone

Easy to install

ashleyr9afe_3217

Easy to install and toddler seems comfortable. In line with other seats for safety features and has held up well so far. Cost is a bit higher but overall decent value.

recieved 50% off this in exchange for my review

britneyl45

it feels soft,plus and cozy. i would say it is just as safe as any other carseat. the ability ti adjust the straps etc is simple and it is just as simple to install.

Nice

stephanieof36e_9967

Really good carseat, seems very safe, easy to install, nice color, durable, looks comfortable. No complaints, it’s adjustable, i recommend for others to try it out

Love this seal!

azeemaa

This seat is really nice and should be on any mommy’s list! In my book it gets a 100 in safety and comfort. The color is so classic and can last for a long time!

Would buy!

wheres_christina

Super comfortable! Cushions everywhere. I love all the the safety straps. It is easy to install and seems very durable. I love that it is adjustable to my baby.

Great over all seat

lindseyp8460

This is an amazing brand and they always have great safety ratings. Easy to adjust and fits in the car with other car seats. Can’t wait to use for my youngest.

Fantastic

denyseh

This product is amazing and I would definitely recommend. It is safe and strong and pretty on top of that. It will last a long time and grow with my child.

Carseat

cassief10

I love how clean and simple this seat looks! It’s soft, very easy to clean and easy to put in the car. My daughter enjoys the comfort this seat provides.

Britax car seat

jasmiine

This britax convertible carseat is lightweightbut stays in positiononce it is hooked. It doesnt slide around. It is easy to take apart to clean as well

Love it!

monicaj132

Car seat is absolutely amazing. My kid is so much more.comfortable in this car seat vs the other one. Definitely would recommend to any parent!!

Comfort

smithsherri57

Very content and comfortable for children! Safe and effective! Strong and durable! Easy installation! Easy to adjust for child size and weight!

Designed for room to grow & more

maryhd412

First off this is a very plush car seat that is made for comfort. I would not hesitate to take a long car trip and know that my child will be comfortable and safe for the duration. We have always been loyal to the Britax brand and I love how seamless this is for transitioning from the newborn stage. The seat is slim which is great for compact cars. Your child can ride rear facing for up to 50lbs which is important to me. Easy installation with their click tight installation and I actually feel confident that I installed it right. Happy with my purchase- washable, adjustable, easy install, and you can use from birth - what more could you want?

Luxury car seat

kfeldt29

Had to wait because this was on back order. My daughter who is two and talking was over the moon for her new car seat. She LOVES that it is PINK. I love that the expiration is good for 10 years and that this chair will be with her throughout all her time in a car seat, since it is a room to grow type. She is still rear facing just because I’m most comfortable with her being that way at least until after winter. Super easy install. And it’s quite the luxurious little car seat. I would absolutely be comfortable taking a road-trip and knowing my little one is comfy in her seat. In case of spills/ accidents the seat is able to to machine washed ( the fabric) was happy to have had a discount coupon for this! Thanks Influenster and Britax

Safe, stylish, and saving money!

chasem30

This is a great buy for new parents! Since it’s ready from birth, you don’t have to worry about changing out car seats and making sure they will fit your child. You can take this one for the ride home from the hospital and it will last years! I’m not planning on having multiple children, but it is awesome to note that they are slim enough to put three of them in a back seat without having safety concerns. I also like how you wash out the liner and keep this clean for years to come!

Sturdy, quality, and reliable brand

ellecie

Our family has always used Britax for car seats. They’re quality seats that last through the years. Poplar is no exception. It’s heavy with a metal frame, easy install, and lots of different positions. The one thing I don’t really enjoy is the head rest doesn’t seem to provide the same padding as their other convertible car seats, since the semi-rounded but flatter and not shaped to the head. I do love the cup holders, they’re removable!

Bulky but durable

monicaz1

The car seat was super heavy and bulky we use the Diono and it fits three but this one is so bulky that it make two a bit tight. I think That this is very durable seat and would stand the test of time. It seems comfortable and my kid did well in it, took it in grandmas car as his seat for that car and she said the installation was quick and easy. We do have it rear facing currently and it did well.

Great inversion for baby’s to grow up in

diani1985

I am so excited to arrive my Britax car seat , we delay a little bit purchasing because we were waiting for the confirmation of the doctor of the beats of my baby so yesterday we purchase it , not without checking it at target , the materials are so soft, and safe. One piece well design and made, can’t wait to have it with us to share the pictures .

Love!!

darrahnors

Very well padded! Suuuuper thick cushions. Seems like it is very high quality. The straps for the neck cushion actually harness to the back of the seat so they aren’t sliding down and all over the place like other car seats which is really nice. My little one is enjoying this car seat and I feel he is safe because it got excellent safety ratings.

Awesome

lauracca2d

I was in the market for a convertible car seat so I was excited to get this. I love how easy it is to install and the safety features. It feels like it has extra padding then other carseats I had looked at. Absolutely love this carseat we are using it rear facing now and will see how long we can use it before switching it to front facing.

Keep our babies safe

steffil1

This is a nice car seat. I love that it grows with my baby meaning I won't have to buy more than one car seat. It's nice and sturdy seems like it will protect my baby if needed. I was given a discount to give my review. Even with a discount code this item is pretty pricy not sure I would have bought without the code price is pretty steep

Very safe!

jaclynh17

This convertible car seat is wonderful. I feel so safe putting my newborn baby in the car seat. It’s made very well and is durable. I am happy that it will grow with my baby and I won’t have to keep buying new car seats while my child grows. It is easy to install and will last for a long time!

At top-of-the-line car seat

benjys

This car seat was extremely easy to install, and it is a really safe seat. I found that it was very easy to get the child in and out and it was very comfortable and it can tell that it was made with top quality parts and appears to be quite durable and easy to clean from toddler spills.

Comfy!!

karlieeryn324

Wow this car seat is great. It’s so soft and cozy for the baby. I love the buckle that is has instead of the usually chest clip style. It makes it easier to unclip. The adjustment strap is a little hard to loosen and tighten. But in all this is a great car seat !

Love it!!!

jonellee1

Amazing car seat my picky daughter hates most car seats but this one is super conforming and comfortable. She definitely is not screaming on long car rides anymore. And I have bought four others before I found this one. This one is far superior to the others.

Fantastic car seat!

tr909

Transitioning from rear-facing to forward-facing is seamless, and the SpaceSaver design is a game-changer for fitting multiple car seats. The attention to safety details are great. Plus, the easy machine-washable fabrics are a parent's dream!

Amazing carseat!

Anonymous

This carseat was a great Christmas gift for my little. It was super easy to install, while also being compact and leaving plenty of room in the back seat. I wish this carseat would have been available when my other two boys were younger.

Britax popular

mandy2042

Britax popular convertible car seat in magenta onyx is a pretty color and loved how affordable it was after using the discount code. It has safety features to keep your precious cargo safe and sound and comes in several other colors

Beautiful

mckenzies4

This is a great looking car seat. We have uppababy and graco and this is significantly nicer looking. It is heavy and very sturdy. I think this is the perfect option when transitioning from an infant car seat.

Good car seat

kaylab15

I received a coupon for 50% off this car seat for an honest review. I have never herd of this brand before this. Loved the durability and style of this car seat. Easy to install and had great safety features.

Easy to install

krabbypahtty_

It’s made well, durable and the best part is it’s easy to install. The seat is soft and my little one had zero complaints. It’s pretty heavy but it felt more secure than my old car seat once it was installed.

Comfy!

melissac1234

The car seat is a really good quality seat. The padding is so comfortable and soft. The shoulder strap padding is soft as well. Seems like a very sturdy seat as it is very heavy!

CarSeat has Great Safety Features!

kimfuselier73

Britax Poplar Convertible CarSeat in Stone Onyx is a great Carseat that grows with your child and is comfortable and soft. It's well made and attractive and also a space saver.

HAD TROUBLE ORDERING BUT GOOD OVERALL

redbekah4

I had to order this product 3x because they weren't stock. I think it was just this particular color. Overall, great seat. Lightweight but difficult to clean like all of them.

Comfortable and easy to install

chels_e

Easy to install car seat, which is always a huge factor when buying car seats. It also seems comfortable for my toddler compared to our old one. It’s also very sturdy feeling.

Love this car seat

r00d_3534

Absolutely love this car seat. Super comfortable my child fits in it I perfectly. Love the safeness of this car seat. Installing it was super single and not hard at all.

Love

Anonymous

I am so glad I was able to get this for my 1yr old son. The harness is perfect for him and adds extra safety. Fits perfectly in my car, not too small but not too big.

Great car seat

emmagination

It’s easy to install and I love that my kid can grow with it. The fabric is easy to clean. It looks confortable. Overall it’s a great car seat of good quality.

Works as advertised! Good toddler seat

beeweis19

Easy to use the code to purchase the car seat. I have a two year old so convenience is everything to me! It was easy to set up and my toddler is comfortable.

Nice color

srs007

This look so comfortable and safe for my kid. Never heard of this brand earlier but now I am confident about this brand. Its amazing and my kids love it too

Wonderful

audrianak

Great carseat exactly as expected and I feel like my baby is very safe. It also seem pretty durable to last through multiple kids. Very impressed!

Not a fan of the straps on this model

Cortruss

We’ve used it for over a year when baby was 5 months to now 19 months and I’ve never been a fan of the straps. There is this hard rubber for no. Slip on the back of the pads that cause an indent on baby. The customer service was not very helpful. They said to just put the straps behind the seat cushion. I’ve done that for the past year and the straps seem to slide off the shoulders if you’re not careful, like they are made just a little too far apart. I don’t feel like my child is very safe in there sometimes and have to finagle the straps constantly, which also leave an indent on her neck. Wish I could have returned it as soon as I got it but here we are. My son has a different Britax model that’s been fantastic and so comfortable for him.

Not for kids who get car sick

Emilya

This is our 8th Britax car seat, so we love the brand, just not this particular seat. Loosening and tightening the harness is more difficult than it should be, the lever to hold while loosening the straps is buried under layers of fabric and the strap to tighten them is against the seat of the car. Our baby gets car sick often and it is a nightmare to clean. The shoulder pads are not removable, so we cannot wash the smell out of them. I do not believe the straps or favorite around the rebound bar are removable either, if they are, we haven’t figured it out. The pieces that do come off don’t go back on as nicely, so we have an expensive car seat that looks and smells awful. The click tight function seems to be very temperamental compared to our other click tight car seats and I find myself having to manually unlock the bottom of the seat before pushing it down. The head rest adjust nicely, and it looks very cushy. If knew 9 months ago what I now, I would have kept our marathon opted for another brand.

Installation is so easy!

Haley97

Love this car seat so much! My 9 month old is super happy to be able to see more, and seems so much more comfortable in his big boy seat. Switching between my husband truck and my car is so easy as well. The clock tight is a must have for switching a car seat back and forth.

Amazing seat 110% recommand

LouCANADAqc

I bought this when my baby was 6 month old as I didn't like the car seat I had before and I loved it so much, that we bought a second that went in my husbands car!! This is the best car seat you could purchase for your kid!

LOVE this seat! So comfy and easy to install

happymom12

We have been using this seat for the past month and are so happy with it! The slim design helps us a lot because we have a smaller car and 2 kids. The ClickTight install is also super easy - the seat does NOT budge!!

Easy and sturdy

jngarne

Didn't require any assembly aside from attaching cup holders. Very easy to understand instructions and quick install. Previously had revolve 360 carseat which was the complete opposite so I triple checked to make sure I did it right because I couldn't believe how simple it was! Also very sturdy once in place, it doesn't budge a bit. My 2 year old is able to climb in by himself and connect most of the pieces with some adjustments by myself to make it just right. My only complaint is it's awkward and a tad difficult to adjust the straps, but once I figured it out it's no problem. Instead of pushing a button down near the pull strap down you must push it in which was just different from normal. Otherwise 10/10 experience. Hope it's as easy to take apart to wash if so it's a must try!

My son looks happy a comfortable

lorrainem34

Having my baby in this car seat gives me peace of mind. This seat has a high-grade steel frame, and the inner material is made of safe cell technology. My son looks happy and comfortable when he's in it. I also like that his chair grows with my kid; I like that the fully open seat belt paths make it easy to access, and the material seat is machine washable. My baby and I are very happy with our new car seat from Britax.

Surprised

samanthag4edd

We needed an extra car seat for my husband’s work car and we were so excited to try this seat out. We have a Graco Extend2Fit and a Chicco NextFit Max Zip Air in our personal cars. They all have their pros and cons. This seat was by far the easiest to install. The Clicktight technology would make this seat easy to take in and out. Our boy feels secure and comfortable in the seat.

Easy to install!

emroberts324

I was given 50% off this car seat in exchange for a review. Overall it was an awesome purchase. The seat itself is very soft. The best part is how easy this seat is to install! The bottom pops open to feed your seatbelt through and clicks over it to make it nice and tight. Super simple! I would absolutely recommend this seat even at full price!

Good Quality Seat and Easy Installation

shawnagbf28

This seat is super easy to install with the ClickTight installation. I love that system! I wish this seat were an all in one or that it at least had a higher weight allowance for forward facing because it's actually pretty limited. I had to return the first seat sent to me because I received a return and it was clearly very mishandled in shipping as well. The replacement seat I was sent had the latch storage compartment lid popped off but I was able to get that back on myself since it shouldn't compromise the safety of the seat. Customer service was able to handle everything quickly and easily!

Great quality convertible car seat

mejpye

I am really happy with this Britax Poplar Convertible Car Seat. It is heavy, strong, and very high quality. They have included many details in the design that make it easy to use and adjust this seat for your needs. The color and materials are very attractive looking and easy to clean up. It is designed and shaped to be comfortable and supportive of little one at each stage of their growth. This is a high-quality seat both in design and the materials used in its construction. It is strong and secure. I definitely recommend this product.

Quality car seat with lux feel

rachelbd53b

This was a great early gift for my little one. This car seat is comfortable and spacious while still being compact. Easy installation as well. Would recommend to anyone who searching for a semi affordable car seat that is comfortable and easy to use.

Sturdy car seat

Britax Poplar Convertible Car Seat, STONE ONYX

Britax has always been a good brand in my book. Trying out this guy was a complete life changer. It felt sleeker than other car seats made by them and easy to install and of course I love the click when I bucked my baby! 10/10

Can’t go wrong with Britax!

Britax Poplar Convertible Car Seat, STONE ONYX

I needed a second car seat for my other car and was tired of switching over the nuna. Honestly this one felt sooo luxurious and sturdy! It was a great fit to my older BMW & my daughter seems to like it no complaints here!

It’s a good car seat

Britax Poplar Convertible Car Seat, Cobalt Onyx

This is a great car seat. It’s adjustable for my bigger toddler, he fits well in it. It’s slim enough, itd not as bulky as other brand name car seats. Overall it’s quality made, it is a little pricey but well worth it.

Convertible car seat

starr6e23

Durable and easy to install great safety features adjustable for an infant or child.. my baby always rides in the back seat so comfortable he sleep during the whole ride..

Love Britax!

kimmieliette

3 kids in, Britax never disappoints! I especially love this convertible car seat as it's safe, easy and pleasing to the eyes! Im banking on it lasting a long time.

Lovely

samanthaj710d

This seat fit my baby and gave him enough room . Great quality and easy to install in car . Comfort for my baby and safety . I am impressed. Wonderful experience

Excellent quality seat!

danielleabdc3

I love how sturdy this seat is! My son is 19 months and has plenty of room to grow. He can move his legs around way more than his previous seat. This will help keep him rear facing as long as possible. The seat is adjustable in recline which is also nice. The click tight feature makes installation a breeze! The whole seat has a great cushion and soft feel. The texture of the fabric makes it cooling and not too hot. The only reason I didn’t give it 5 stars is due to the shoulder straps. They ate thick and long which I love! However the have a grip texture on the bottom side which sometimes rubs my sons skin. I have to be very careful to ensure I pull the fabric of his shirt up high enough to create a barrier between the strap and his skin.

Securityes

gdv30

It is a product designed for the safety and comfort of our children. It has five safety points, adjustable straps. Six types of reclining positions approved by the FAA. It has ten years to expire. It is incredible. In addition, our children enjoy comfort. It is very easy to install.

Luxurious car seat

sarahrhill

I was looking for a second car seat for our other vehicle and this one is perfect! It was easy to install, provides a ton of room for your child to continue to grow in and it is soft, durable and comfortable. My child is very happy in her new seat and I feel very safe and happy that she is traveling in it. I would absolutely recommend!

Love

runeandmika

We absolutely love our Britax Poplar convertible carseat!! We got it in the cobalt onyx color option so it's unisex since we have boys and girls. So safe feeling and easy to install and clean!

I wish I had never purchased this

Busyspongewashing

I am extremely disappointed with Britax's poor design choice for the harness pads to not be removable and sponge cleaned only. Whoever is responsible for this design decision should be fired, so stupid. If I had known about this, I would have never bought the seat. The product info, which says the covers are removable and machine washable fails to mention this, very misleading. On top of that, the fabric is pilling and looking bad after only a few months, unacceptable. I will be telling anyone I know to not buy this car seat. Shame on you Britax.

The best seats

CMAC

Loved this seat so much for my first that we bought 2 more for our twins so we now have 3 kids in poplars. easy installation, butter smooth tightening for the straps, and they are very compact without compromising comfort. their customer service is also fantastic which is important when making such an expensive purchase.

Can we get a moms input in design PLEASE

Annoyed mom, we want easy

Britax. Can I ask WHY the strap pads are connected to the car seat? Why would these not be removable to easy washing? Which leads me to my next point… why are there so many elastic loops in impossible to reach hooks that hold the cushions in place. Car seats have to be washed. Their ease in washing ability is what makes or breaks a car seat for me. I love this car seat but zero stars for its wash ability. Also, the anchors are not click connect, they are the incredibly frustrating squeeze latch thing. 0/10 recommend. You definately want the quick and easy latches that are just like car seat buckles.

Safety is #1 priority

Anonymous

I love the Britax poplar convertible car seat, it is easy to install, if you have multiple children the space saving dynamic of this car seat is unmatched! The safety for my child is top priority and this is an amazing car seat! As well as comfortable for him

Very happy with purchase

Carseat25

When our previous convertible car seat was recalled, I began looking for a replacement option. I had always heard Britax was a reliable brand and was drawn to the 50lb rear facing limit of the Poplar. The click tight technology makes for an extremely easy installation and the seat feels very tight and secure once installed. My son seems comfortable and I like that the sides are slight lower than our previous seat, which makes it easier to get him in and out. The only negative I’ve run into so far (which is more just an adjustment vs. our previous car seat) is that the harness release button is sometimes hard for me to find/reach. I provided this honest and true product review in exchange for a rebate on my purchase.

Great for three across

Taylor

This is my first narrow car seat and I’m happy with it, there are just a few things I don’t love. I initially bought it for my youngest, so I set it up for her. The shoulder pads are only to be used for certain ages, so I had to remove them for her. I like the idea of them not being able to come completely off, but the storage spot was hard to figure out. My plans changed since my youngest still fits in her infant seat so I adjusted the seat for my oldest. I put the pads back on and adjusted it for forward facing instead. I don’t love the set up for the forward facing strap. I put this in a GMC Yukon and had to make it way longer, then moved it to a Chevy 2500 which had to be as short as possible. The strap is not very easy to adjust when you’re in tight quarters. Everything else I’ve loved about the seat. Super easy to adjust the buckle placement, recline, height, etc. I love the ease of installment with the ClickTight system. That is what sold me on the Britax brand to begin with. Both kids were very comfortable in the seat; I found my youngest sitting in it all the time before I got it installed in the vehicle. I provided this honest and true review in exchange for a rebate on my purchase.

Better than expected & will get long use from it!

MamaAmber

Installing this car seat was a breeze and I really took a liking to this click-tight system- makes me confident that my baby is riding safely. The cushions look way more luxurious in person than in pictures and I see the Poplar lasting for several stages. Aside from being a convertible car seat, that will transition to forward facing, it has a lot of head positions so if my baby needs the height i'm certain it will accommodate! It's nice that the Poplar is set up so you can add the stability bar if you're fixated on that. My only wish is that Britax made a way to add a canopy for extra shade like many infant car seats already come with. I provided this Honest and True Product Review in exchange for a rebate on my purchase.

Great quality! Easy to install!

Momof2

The car seat is very nice quality. Out of the box you can see a lot of labeling for where things should go and how to install. The instructions are very simple and when I wanted a visual example there are several on YouTube. After following the YouTube video I had the car seat installed and used the recommended seat belt method. Using the seatbelt was even less intimidating than the lower anchors because of the click tight technology. One of the biggest draws of this car seat was the promise of front to back space saving. It is a much better fit than our maxi-cosi infant car seat. Thankful it still seems very roomy for the baby. The only negative I ran into is that we are using this for our 40 percentile 5 month old and I wasn’t sure if the harness pads needed to be used for her. (They don’t). After some searching and googling I was able to find the answer.

Worth the money!!

hoop_dreamz

We love Britax products. This is our second one to put in another car. We love the comfort it provides for our kids. They love sitting in it. It thick and heavy, which provides optimal safety and ease of parents minds. It is super easy to install and installs very securely compared to other brands. The only down side is that it’s heavy - although I prefer it heavier for safety reasons. I highly recommend this product!

I wish I had this seat three years ago!

KM723

I have been a fan of Britax since I purchased our first Britax three years ago. When Britax came out with the Poplar, I knew I would be a fan. We needed a convertible seat for our 10 month old and this was the perfect choice. I am so impressed the comfort, sturdiness, and extra convenience features this seat has. I provided this Honest and True Product Review in exchange for a rebate on my purchase.

Love this seat!

Kendall

Love this seat! I love the slim design of the Poplar! We have loved the clicktight feature on all of our Britax seats (this is our third seat) and we have not been disappointed! The Poplar will provide a lot of flexibility when transporting 3 across. Very happy with this purchase! I provided this Honest and True Product Review in exchange for a rebate on my purchase.

Great seat!

Momof3

We absolutely love this seat. The install is a breeze, my kids prefer it comfort wise over our old gracos. The extended rear facing limits are fantastic, our 4.5 year old is still comfortably rear facing in hers. Easy to assemble and wash. Very slim side to side and incredibly compact front to back.

Versatile and easy

Rinaaaaa

This car seat is amazing. It’s beautiful, it’s strong, and easy. Installation was a breeze, and I thank britax for putting clear instructions on the seat insert stating under 22lb, you must use it rear facing. My 13 month old is 19lb and I definitely took the insert out before seeing the warning on it! The shoulder pads are amazing as they don’t fall down because they have grippies on them! My daughter was no longer liking the infant seat which is why I got this one and now, she loves sitting in her big girl car seat!

Stylish and reliable car seat

imadh2

The Britax Poplar Convertible Car Seat in the striking Magenta Onyx color is a top choice for parents who prioritize safety and style. This car seat stands out with its vibrant magenta fabric, adding a touch of personality to your vehicle's interior. In terms of safety, Britax is known for its commitment to high standards, and the Poplar model is no exception. It features a robust, steel-reinforced frame and side impact protection that offers peace of mind. The car seat is designed to grow with your child, transitioning from rear-facing to forward-facing, making it a practical choice for long-term use. One of the highlights of this seat is its ease of installation. The ClickTight system simplifies the process, ensuring a secure and hassle-free fit in most vehicles. The no-rethread harness is also a standout feature, allowing easy adjustments as your child grows.

We love this seat!!

MemphisMomma

We recently got this seat as our daughter was outgrowing her infant seat and we’re in love! It’s so beautiful and comfy. We picked the S as there was more cushion/padding included and I’m glad we did. We did notice that Britax car seats tend to have shorter crotch straps, but she still fits in this comfortably And has no problems with the buckle. I’d highly recommend this seat!!

Great Fit!

Anonymous

So thankful for the opportunity to get use this car seat as we were in the market for one. Absolutely love this one. We currently have the Uppababy one for our toddler and this one is much less bulky but still provides amble support and safety. Very secure! Definitely can’t go wrong with this one.

Sand Onyx is not Tan!

Sand Onyx is not Tan

Awesome product! This is our second purchase for second vehicle. Very easy to install and adjust. Game changer compared to other “top” brands. I am disappointed because in the pictures this looks tan. It looks grey in real life.

Cute and does its job

jalesias

I got this as a car seat for my vehicle. I really like it for my child. Love the color and the fit for my child is perfect. It was easy to install in my car. Looking forward to converting it as my girl gets bigger. I do recommend it!

Small seat with BIG LOVE!

DigiMama

We wanted to wait for this review until after our big up-north trip, and I am SO happy I did because it was AMAZING! My daughter who NEVER naps anymore since being forward facing, napped half the trip because she was so comfortable! The ClickTight installation system is a game-changer. It makes installing the seat so easy and secure—no more wrestling with seat belts or worrying if it’s in right. The built-in lock-offs and LATCH connectors are straightforward, making the whole process quick and hassle-free. My daughter loves this seat! It’s super padded and comfy. The adjustable headrest and harness will grow with her, so she’s always snug and happy. Plus, there are multiple recline positions for rear-facing babes. The Britax Poplar has a nice compact design. It’s roomy enough for my daughter but doesn’t take up too much space in the car. It would definitely fit well in smaller cars, and even in our large SUV we needed a seat that could fit with multiple in the 3rd row. Overall, I’m super happy with the Britax Poplar car seat. It’s easy to install, super comfortable for my daughter, and fits well in my car. Highly recommend! I provided this Honest and True Product Review in exchange for a rebate on my purchase.

Reddit Insights

5 threads · r/Buyingforbaby, r/BabyBumpsCanada, r/CPST, r/auckland

Reddit users praise the Britax Poplar S for its slim design and easy ClickTight installation, though some note average crash test results and fabric issues.

mixed sentiment95% match

Overall positive sentiment with appreciation for narrow width and installation, but tempered by concerns about crash test performance and cover material.

Themes

Installation ease (ClickTight)positive
Slim/narrow profile for tight spacespositive
Crash test performancenegative
Fabric and cleaningnegative
Rear-facing longevitypositive

Use Cases

  • Fitting three car seats across in a vehicle
  • Compact cars or tall front-seat passengers
  • Extended rear-facing for taller children

Watch Out For

mediumCover fabric can be slippery and hard to remove for cleaning.
mediumCrash test analysis is only average compared to some competitors.
lowAirplane installation requires routing seatbelt over ClickTight panel, different from vehicle install.
highNot compatible with vehicles that have non-removable headrests.

Community Q&A

Does the Britax Poplar S fit three across in a mid-size vehicle?
Yes, its 17-inch width makes it a great candidate for three-across setups.
How easy is the ClickTight installation with a seatbelt?
Very easy; users report a secure install in seconds with no struggle.
Can the Poplar S be used rear-facing to 49 inches?
Yes, but in practice the harness height may limit taller children before reaching 49 inches.

Compared To

vs Graco Extend2Fit

Compared for compactness; Poplar is similar or slightly less compact front-to-back.

vs Evenflo Revolve360

Poplar is narrower and easier to install than rotating seats, but rotating seats offer convenience.

Source Threads

  • Decision paralysis: Britax Poplar vs. Evenflo Revolve360

    I have a small car (Mazda3) and need a compact seat. The Poplar is super narrow and easy to install with ClickTight. The Revolve360 is convenient but wider and takes up more space front-to-back, so I am leaning toward the Poplar for everyday usability.

    r/BuyingforbabyView thread →

  • 3-across success with Poplar and Graco seats

    I managed to fit Britax Poplar, Graco Extend2Fit, and a backless booster across a Honda CR-V. The 17-inch width of the Poplar made it possible. Installation was tight but the ClickTight panel helped get a solid install with the seatbelt.

    r/BabyBumpsCanadaView thread →

  • Rear-facing height limit clarification

    The Poplar S allows rear-facing up to 49 inches, but the harness slots top out around 17 inches. My 4-year-old with a long torso is close to outgrowing it rear-facing by height, even though she's only 42 inches. It's a good seat, but don't expect all kids to make it to 49 inches rear-facing.

    r/CPSTView thread →

  • Compact and easy install in a small car

    We have a small hatchback and this seat fits well behind the passenger seat without squishing the front occupant. The seatbelt install was so quick compared to our old seat. Also fits three across in our second car.

    r/aucklandView thread →

  • Poplar S crash test concerns and other quirks

    The crash test results on the Britax Poplar/Poplar S are just average. Some other seats in this price range test better. Also, the cover fabric is slippery and my kid slides out of position, and removing the cover for washing is a pain.

    r/CPSTView thread →