Sea to Summit
Sea to Summit Lightweight Compression Sack — Surf Blue | Packable, water-resistant stuff sack for sleeping bags & clothing
Sea to Summit Lightweight Compression Sack is a pack-organization compression sack for compressing and storing soft gear (sleeping bags, clothing) for backpacking, camping, and travel; it uses a drawstring closure with an attached flip-top lid, a four-strap compression system, and a sturdy nylon webbing handle on the round base. Constructed from bluesign®-approved recycled 70D nylon with a PFC-free DWR and a PU-coated interior rated to 2,000 mm hydrostatic head (water-resistant; seams are not tape-sealed and the top is not a roll-top), it is available in 5, 8, 13, 20 and 35 liter capacities — weights (oz / g): 2.4 / 68, 3 / 86, 4 / 112, 4.7 / 134, 5.9 / 167; diameters x heights: 6 in x 11.7 in (15.2 x 29.6 cm), 7.1 in x 14 in (18.1 x 35.5 cm), 8.1 in x 17 in (20.5 x 43.3 cm), 9.4 in x 18.7 in (24 x 47.5 cm), and 11.3 in x 22.8 in (28.8 x 57.8 cm); interior is bright white to improve visibility of packed items.
- Color
- Surf Blue
- Material
- durable, lightweight materials
- Style
- travel-friendly, utilitarian, lightweight
- Category
- Sporting Goods > Outdoor Recreation > Camping & Hiking > Compression Sacks
Color
- GTIN
9327868147984- MPN
SEATOSUMMIT-9327868147984-NEWOVERSTOCK
Specifications
Lightweight, durable compression sack with a four-strap system and water-resistant fabric to reduce bulk and organize sleeping bags and clothing for travel, camping, and backpacking.
Four-strap compression system for even pressure and shape retention; water-resistant fabric protects against light moisture and splashes; lightweight, durable construction for long-term use; compresses bulky soft items to save space.
- Color
- Surf Blue · blue
- Material
- durable, lightweight materials
- Style
- travel-friendly, utilitarian, lightweight
- Occasion
- travel, hiking, vacation
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Dimensions
- 6x6x11.7 in
- Category
- Sporting Goods > Outdoor Recreation > Camping & Hiking > Compression Sacks
Additional Attributes
- Brand new, open box item (box may have some damage but the item is unaffected)
- Space-saving design: compresses bulky gear for more efficient packing
- Lightweight & durable: strong yet minimal-weight materials built for long-term use
- Crafted from durable, lightweight materials
- Four-strap compression system: evenly distributes pressure
- Four-strap system provides even compression and shape retention
- Water-resistant fabric: offers protection against light moisture and splashes
- Helps reduce the bulk of gear by compressing clothing, sleeping bags, or other soft items
- Versatile use: ideal for sleeping bags, clothing, and soft travel items
- Designed for camping, backpacking, and organizing luggage
- Color: Surf Blue
Image Analysis
2 images- 01high
Studio product photo of a blue cylindrical compression/stuff sack (likely for a sleeping bag or camping gear) with two black vertical compression straps and quick-release buckles, black reinforced top and bottom bands, shown against a white background.
blue cylindrical compression sack / stuff sacktwo vertical black compression straps (webbing)two black quick-release bucklesblack reinforced top bandblack reinforced bottom bandnylon/fabric materialstitched seamsstudio product shot on white backgroundno visible branding or text- 02high
Studio-style product image of a 20-liter blue cylindrical dry bag / compression sack with black end panels, two black vertical straps and buckles. The bag is shown on a white background with measurement guides indicating height 18.7 in and width 9.4 in. '20 LITER' appears at the top of the image.
OCR: 20 LITER 18.7 in 9.4 in20 LITER textblue cylindrical dry bag / compression sackblack top panelblack bottom panelblack vertical compression straps (two)black plastic buckles (two)vertical measurement linehorizontal measurement linemeasurement text: 18.7 in (vertical)measurement text: 9.4 in (horizontal)white background / studio product shot
Brand PDP Lookup
- Brand
- Sea to Summit
Lightweight Compression Sack
Documents & Data
Customer Reviews
61 total61 reviews · out of 5
Great model of compression sack,
Great model of compression sack, well built and easy to use. Light and easy to.
Compression packs
Worked great for sleeping bags!Very tough material, heavy duty and can take alot.
Compression bags pack a punch!
Purchased Sea to Summit compression bags for a 3-week motorcycle tour and the bags made the adventure much more enjoyable as all my gear could easily fit in the two (2) panniers!
Works perfect!
Works perfect!
Deceptively amazing.
When I first bought it, I thought there was no way my massive sleeping bag could fit inside. I was wrong. Stuffs perfectly in and fast, too. Feels durable and I’ve had no complaints so far. It also compresses down smaller than other similar sacks I’ve tried. 10/10!
Great sack
I have several sizes of these and use them all. Highly recommend.
Solid and Durable
Solid and durable
Durable and really compresses
This isn't my first Sea to Summit compression sack. They are durable and well-made and just don't seem to tear or fail. You can really pack a sleeping bag into it. And even though it's not water proof, it does seem to repel water.
Top notch product and customer service
I purchase one of these compression storage bags off a recommendation and was so impressed, I bought a set of three to give to a friend. Not only is the product excellent, both in design and construction quality, the customer service is well beyond expectations. Absolutely recommend Sea to Summit an...
Like the design, colour and
Like the design, colour and quality
Helpful for “Personal Item” Compression
Worked wonders for compressing my clothes in my “personal item” carry on. Fit everything I really needed for a 6 day lake stay (granted it’s summer clothes and bathing suits which take up less space). Looking forward to using it this winter when doing some hut trips, too. Would definitely recommend.
Perfect! It was exactly what
Perfect! It was exactly what I was looking for to get my 0* down quilt down to a packable size! Get's the job done and keeps the water out when inside my pack!
Great Sacks
Caught a sale and purchased 3 of the 30 litre compression sacks. Can pack a lot into them! I use them for our family's sleeping bags and can fit more.
Ordered a medium and large
Ordered a medium and large sack and love them. Super well made and designed.
20L & 30L Compression Sacks
These are great compression bags. Both of these bags replaced original compression bags which came with sleeping bags (synthetic). Much more compression and the bags are more durable.
20L & 30L Compression Sacks
These are great compression bags. Both of these bags replaced original compression bags which came with sleeping bags (synthetic). Much more compression and the bags are more durable.
Perfect bag for keeping all
Perfect bag for keeping all of your clothing together in your pack. Also works well for a 3 season sleeping bag.
Perfect bag for keeping all
Perfect bag for keeping all of your clothing together in your pack. Also works well for a 3 season sleeping bag.
Holds my synthetic sleeping bag
Holds my synthetic sleeping bag very securely. Very well made and strong compared to the one that came with it
Holds my synthetic sleeping bag
Holds my synthetic sleeping bag very securely. Very well made and strong compared to the one that came with it
Compression sack
It makes packing my ADV bike much easier. Thanks
Compression sack
It makes packing my ADV bike much easier. Thanks
Love it
Reduce size very efficiently
Works well
Works well
Works well
Works well
Very well made
Great Bag, I bought 2 of them to stuff my over and under quilts into. They are very well made. Easy to stuff into and compress well. Stitching and the way the straps are attached appear to be well designed, does not appear to stress when compressing. Material seems to be tough enough for my use, sto...
Very well made
Great Bag, I bought 2 of them to stuff my over and under quilts into. They are very well made. Easy to stuff into and compress well. Stitching and the way the straps are attached appear to be well designed, does not appear to stress when compressing. Material seems to be tough enough for my use, sto...
Does the job, holds more
Does the job, holds more than you think it will and is sturdy
Does the job, holds more
Does the job, holds more than you think it will and is sturdy
Excellent product
Excellent product
Excellent product
Excellent product
These Stuff Sacks Rock! Very
These Stuff Sacks Rock! Very well built and they work like a charm. Used it during a Bike-packing trip and it was hugely helpful for keeping my gear small and tight.
These Stuff Sacks Rock! Very
These Stuff Sacks Rock! Very well built and they work like a charm. Used it during a Bike-packing trip and it was hugely helpful for keeping my gear small and tight.
These bags are the best
These bags are the best for shrinking down you load in your backpack
These bags are the best
These bags are the best for shrinking down you load in your backpack
Does what I wanted it
Does what I wanted it to do, seems durable!
Does what I wanted it
Does what I wanted it to do, seems durable!
Worked great after I lost
Worked great after I lost the original stuff sack for the sleeping bag, which wasn't a compression sack. Will be using regularly.
Worked great after I lost
Worked great after I lost the original stuff sack for the sleeping bag, which wasn't a compression sack. Will be using regularly.
Very reliable products. I use
Very reliable products. I use the dry bags, compression, and also the bags that line my backpacks (70L & 90L). There’s no other brand I would buy! Worth every penny, because let’s be real...dry gear is PRICELESS when you’re in backcountry! I recommend them to everyone.
Very reliable products. I use
Very reliable products. I use the dry bags, compression, and also the bags that line my backpacks (70L & 90L). There’s no other brand I would buy! Worth every penny, because let’s be real...dry gear is PRICELESS when you’re in backcountry! I recommend them to everyone.
I Love this Item
Compression sacks are awesome, I ordered the 10L and my sleeping bag fits perfectly in there and as the name of the product says it compresses it to make my sleeping bag smaller (which is usually the bullets item in my backpack)....now I am 5'2" and have a specialty sleeping bag so it is smaller tha...
I Love this Item
Compression sacks are awesome, I ordered the 10L and my sleeping bag fits perfectly in there and as the name of the product says it compresses it to make my sleeping bag smaller (which is usually the bullets item in my backpack)....now I am 5'2" and have a specialty sleeping bag so it is smaller tha...
product
Great product, wished that the top cover was about 1" to 2" bigger in length & width. With a big & tall bag, a larger top cover would be good. Phil
product
Great product, wished that the top cover was about 1" to 2" bigger in length & width. With a big & tall bag, a larger top cover would be good. Phil
good product
The large model tames a huge down huge sleeping bag for back pack travel. It's a bit of a hassle fighting the air out of the sleeping bag; but it's amazing how this sack smooshes down something so large and full of air. Don't compress your down stuff inside this indefinitely--the down must air out a...
Toughness
You can tug on the straps and it shrinks right down
Sleeping bag storage and transportation
The compression sack is lightweight, durable, and simple to use. I bought a size medium for my 15 degree bag, and a size large for my -20 degree bag. Both are the perfect size.
To keep my sleeping bag dry and compressed when backpacking/traveling.
This is an outstanding and innovative product. I bought my first one the better part of a decade ago and have since bought more for all of my sleeping bags.
Not Super Light but Effective
This review is for the 14L, Medium compression sack. I decided to buy a compression sack after using one with a rented -15 degree Celsius bag, and being amazed at how much it shrunk that monster down. Weight: 5 oz compared to 1 oz for a typical sleeping bag stuff sack. I would have preferred not h...
no frills. just works
This product works as advertised.
good product
The large model tames a huge down huge sleeping bag for back pack travel. It's a bit of a hassle fighting the air out of the sleeping bag; but it's amazing how this sack smooshes down something so large and full of air. Don't compress your down stuff inside this indefinitely--the down must air out a...
Toughness
You can tug on the straps and it shrinks right down
Sleeping bag storage and transportation
The compression sack is lightweight, durable, and simple to use. I bought a size medium for my 15 degree bag, and a size large for my -20 degree bag. Both are the perfect size.
Q&A
11 answered8 Questions Answered
6 high confidence · 6 web-sourced
Across the 61 reviews, what are the most common real-world items customers report stuffing into each size (e.g., sleeping bag, winter clothing, quilt) and which sizes are most often recommended for sleeping bags vs clothing?
Across reviews and community usage we see a pattern: the smallest sizes (5–8 L) are most often used for single insulated pieces and small kit — puffy jackets, hats, a small pillow or accessories; the mid 13 L size is the most frequently reported choice for an ultralight/summer sleeping bag or backpacking quilt (and 1–2 days of clothing); 20 L is commonly chosen for larger/colder-season sleeping bags or a sleeping bag plus extra clothes; 35 L is typically used to carry a tent canopy, multiple days of clothing, or to combine several bulky items. So, if you mainly want to compress a single sleeping bag or quilt pick 13 L; for just a puffy jacket or small clothes 5–8 L is usually enough; choose 20 L+ for bulkier bags or multi-item packing. [1][2][3][4]
Sources
- [1]Sea to Summit Lightweight Compression Sack — official product page (sizes and capacities)
- [2]Treeline Review — notes on 13L holding a sleeping bag, jackets and layers
- [3]Sea to Summit Lightweight Compression Sack — retailer listing with customer reviews (13L fits quilts/sleeping bags)
- [4]Popular Mechanics — common uses for compression sacks (sleeping bags, pillows, clothing)
brand product page; retailer and independent reviews (Sea to Summit product page, Treeline review, Dick's Sporting Goods customer reviews, Popular Mechanics roundup).
For a standard mummy down sleeping bag (men's 20°F / -6°C and women's 30°F / -1°C), which Sea to Summit Lightweight Compression Sack sizes do you recommend so the bag compresses well but doesn't overstress the straps?
We recommend the 13 L Lightweight Compression Sack for most men’s 20°F (-6°C) mummy down bags and the 8 L for typical women’s 30°F (-1°C) mummy down bags — the 13 L (≈8.1" x 17") and 8 L (≈7.1" x 14") sizes compress well without overstressing the four-strap system. If your bag is especially lofty, has a lot of down, or is synthetic, pick the next size up (20 L) so you don’t have to over-compress the straps. These recommendations follow the sack’s published size specs and common industry guidance on compressed sleeping-bag volumes. [1][2][3]
Sources
Sea to Summit product specs (size/dimensions) plus Sea to Summit support article on choosing size and independent guides on typical compressed volumes for down sleeping bags
Does Sea to Summit provide guidance on how tightly to cinch the four-strap system (or a recommended max compression) for down sleeping bags to avoid loss of loft if stored long-term?
We don’t recommend storing down bags long-term compressed in this compression sack — Sea to Summit explicitly warns that compression sacks aren’t for long‑term storage because prolonged compression can damage down loft. [1] They don’t publish a numeric “max” compression; for packing they advise only mild compression (e.g., press the bag until the top surface is roughly level) and for long‑term storage keep sleeping bags dry and uncompressed in a storage/lofting bag. [2][3]
Sources
- [1]Choosing A Compression Sack — Sea to Summit (blog) — 'Compression sacks aren’t for long-term storage'.
- [2]Caring for Your Gear — Sea to Summit (product care) — 'store it dry' and 'store in an uncompressed state' guidance.
- [3]What size compression sack do I need for my sleeping bag? — Sea to Summit support — instructs 'press the bag down until the top surface is roughly level (mildly compressed)'.
Sea to Summit blog 'Choosing A Compression Sack' (storage guidance), 'Caring for Your Gear' (store dry/uncompressed), and support article 'What size compression sack do I need...' (mildly compressed guidance)
How are the strap attachment points and the base handle constructed—are they bar-tacked/reinforced—and is there a published load rating or observed failure mode for heavy use?
We use a sturdy nylon webbing handle on the round base and a four‑strap compression system; Sea to Summit’s product page shows the webbing base handle and the straps but does not specify stitching method or publish a load rating. Sea to Summit’s sales/catalog materials for their stuff‑sack/compression‑sack line state that stress points are bar‑tack (reinforcement) stitched, so the strap attachment points and base handle are typically reinforced — however there’s no numeric load rating or formal failure‑mode data published for this Lightweight Compression Sack, and customer reviews show no widespread reports of strap/handle failure. [1] [2]
Sources
Sea to Summit product page (product features + tech specs) and Sea to Summit buyers'/catalog guide noting bar‑tack reinforcement at stress points
The listing notes a PU-coated interior (2,000 mm HH), PFC-free DWR, un-taped seams and a drawstring top—in practical terms, will the sack keep a sleeping bag/clothes dry inside a tent during a heavy rain or only protect against light splashes?
This sack is water-resistant — the PU-coated interior (2,000 mm HH) and DWR will protect gear from light moisture and splashes, but it is not waterproof. Because the seams aren’t tape-sealed and the top is a drawstring (not a roll-top), it will not reliably keep a sleeping bag or clothes dry during heavy or prolonged rain if water gets into the tent. For heavy-rain conditions we recommend using this as a pack-organization/compression layer and adding a waterproof stuff sack or dry bag as an inner liner for true waterproof protection.
product_description; features & specs; existing FAQ
What are the recommended cleaning and care instructions (washing method, drying, reproofing DWR) for the Lightweight Compression Sack to preserve the PU coating and PFC-free DWR?
We recommend washing this sack by hand in warm water with a non‑detergent soap (we suggest Sea to Summit Wilderness Wash), avoiding regular detergents and solvents that can damage coatings. Rinse well and air‑dry completely out of direct sun — do not use high heat in a tumble dryer to protect the PU interior and seams. To refresh the exterior PFC‑free DWR, use a technical, PFC‑free reproof product (spray‑on or wash‑in) made for outdoor fabrics (examples: Nikwax TX.Direct spray or Grangers Performance Repel), apply to the outside only per the product instructions, spot‑test first, and follow the reproofer’s activation steps if it recommends low heat; avoid solvent‑based treatments that can delaminate PU. [1][2][3][4]
Sources
- [1]Sea to Summit — CLEANING DRY & COMPRESSION BAGS / STUFF SACKS (support article)
- [2]Sea to Summit — Lightweight Compression Sack (product page; materials/specs)
- [3]Nikwax — FAQs (includes guidance on treating PU‑coated fabrics and using TX.Direct spray)
- [4]Grangers / reproofing guidance (wash‑in vs spray‑on and activation instructions)
Sea to Summit support article on cleaning dry/compression sacks; Sea to Summit product page (materials/specs); Nikwax FAQ on PU‑coated fabrics and DWR; Grangers reproofing guidance
What percentage of the 70D nylon is recycled, and where is this product manufactured?
We don’t have an exact percentage — Sea to Summit describes the shell as “bluesign® approved recycled 70D Nylon” but does not publish the percent recycled on the product page. The product page also does not list a country of manufacture for this Lightweight Compression Sack; industry sources note Sea to Summit gear is commonly produced in Asia (China, Vietnam, Taiwan), but we can’t confirm the specific factory country for this item.
Sources
Sea to Summit product page (product_description) and industry/retailer sourcing (manufacturing locations)
Can the compression straps be used to secure the sack externally to a pack (as a lash point), and are there any fit/clearance considerations when mounting a filled/partially compressed sack to an external daisy/side-strap?
We recommend you can lash this sack to the outside of a pack for light-to-moderate loads — the four-strap compression system and the sturdy nylon webbing handle let you secure and cinch the sack to side straps or daisy-chain points, but the straps are not reinforced, dedicated lash hardware so they shouldn’t be relied on for heavy or highly dynamic loads. Check the sack’s nominal size when planning clearance: 5L ≈ 6"×11.7", 8L ≈ 7.1"×14", 13L ≈ 8.1"×17", 20L ≈ 9.4"×18.7", 35L ≈ 11.3"×22.8" (weights 2.4–5.9 oz depending on size); the height shortens when you compress it, but the compressed diameter still needs to fit between your pack’s straps/daisy-chain and clear the hipbelt/shoulder area. Also note this sack is water‑resistant (not fully waterproof), so mounting it externally may expose contents to light moisture or spray.
product_features, dimensions, existing_faq
Merchant FAQs
- Is this compression sack a good tent storage bag?
- Perhaps. Carrying the tent canopy in your pack (with the poles under the compression straps) is a great idea. However - the canopy may not compress that much.
- Is this compression sack waterproof?
- No, this compression sack is only water resistant. The seams are not tape-sealed and the top does not have a roll-top closure, so it's possible for water to get inside.
- Is this compression sack worth the weight and cost?
- Once you have experienced modular packing with ultralight compression sack you’ll wonder how you ever lived without them.