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Your cart is empty.The Sea to Summit Ultra-Sil Compression Sack squishes down bulky clothing and gear to maximize packing space when backpacking, camping, or traveling. Manufactured from lightweight 30D Ultra-Sil Cordura nylon, its slippery finish makes it easy to slide bags into tight spaces for better packing. A flip-top lid with a drawcord closure provides quick and easy access to bag contents. Four extra-long straps allow for max capacity and even compression. The Sea to Summit Ultra-Sil Compression Sack has a round base with a reinforced webbing pull handle for easy carry. Seams are double stitched, and stress points are bartacked for durability. Available in five sizes: 6 liter, 10 liter, 14 liter, 20 liter, and 30 liter, to carry everything from small essentials to group gear. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product. (Note that stuff sacks do not have taped seams or a roll-top closure; they are water-resistant, not waterproof.)
Earthshineguy
Reviewed in the United States on February 28, 2025
Works as described. I was able to travel for a week with a carry-on because of this. Strong and works as intended.
Jonathan L. Connor
Reviewed in the United States on January 25, 2024
I hate when I'm traveling trying to keep my dirty laundry separate from my clean clothes in the suitcase. This bag solved that! I love that I can put my used clothes in this compression bag and then shrink it down to a small size to pack in my suitcase. It's made traveling so much easier!
paul i lake
Reviewed in the United States on April 27, 2024
It works as advertised. Able to compress an entire weeks worth of under clothes and socks into a small easy to pack, package. Used it on return for dirty clothes. Of course it doesn't reduce the weight, but makes packing easier for non wrinkle able items.
Trevor
Reviewed in the United States on July 10, 2023
Purchased an Enlightened Equipment Revelation Quilt Apex and needed something to compress it down to something manageable for my pack, whether that is my day pack for short overnight hikes, or my larger pack for longer hikes. Purchased the 14l Sea to Summit and the first thing I noticed when it was arrived was how extremely thin and light it was compared to other compression sacks I have owned or looked at before. I was a bit concerned that the 14l would be too small, but the quilt it in the sack and compressed all the way down to a size that will fit in my Osprey Skarab 30 day pack. So far I'm really impressed, we will see how it holds up over time but it seems like it is built with some quality so I'm pretty optimistic. Overall I'm happy with the purchase!
onthemove
Reviewed in the United States on May 30, 2023
I bought the xs and got quite a number of men’s undershirts& trunks into it but when it’s compressed you wind up with a round bulky though small object that will take up too much space if you need to lay other things flat.
Emanlae Rymton
Reviewed in the United States on November 28, 2023
It’s exactly what it says and works perfectly. High quality & fairly lightweight.
Sandro
Reviewed in Italy on December 26, 2022
Indispensabili per organizzare nel migliore dei modi lo spazio interno dello zaino. Non possono mancare tra gli accessori dei trekker. Io oltre alla XS ho anche la S ed entrambe vanno bene per l'abbigliamento, se ne riesce a mettere tanto, con anche la comodità di poter compattare le sacche comprimendole.
amparo balaguer pascual
Reviewed in Spain on August 21, 2021
Justo para la compresión del saco va perfecto
Tolotos
Reviewed in Germany on April 16, 2020
Ich finde den Kompressionssack super, ich habe ihn bestellt um meinen Sommer-Schlafsack Thermarest Spacecowboy compakter verstauen zu können, dafür ist er sehr gut geeignet. Werde demnächst noch weitere Sea to Summit Kompressionssäcke bestellen, da ich noch andere Decken und Schlafsäcke habe. Tolles Produkt!
neuroadie_surg
Reviewed in Japan on August 20, 2019
ISUKAのAir280Xに使用していますが、圧縮前が付属のサックと同程度か少し大きめくらいの大きさで、詰め込みやすいです。そこから圧縮できるのでかなりコンパクトにまとまります。サイズとしてはハンドボール大といったところです。ウルトラSILで薄く軽いため、軽量なシュラフにはちょうど良いのではないでしょうか。ただ、完全な防水チャックのものと比べると上から水が入り込むリスクはゼロではありませんので、悪天候時には使いづらい可能性も否定はできません。
Basti S.
Reviewed in Germany on December 27, 2019
Ich finde das Teil top. Super leicht, sehr robuster Stoff, lässt sich sehr klein komprimieren
D. T. Douglas
Reviewed in the United States on December 31, 2015
I purchased a 14 L (M) compression stuff sack. Sea to Summit is just hands down the best maker for stuff sacks. I've used about every brand out there- they all have their strengths and weaknesses- but S2S just works.This sack is the 14L/ med. Id say you could use it for a large sleeping bag (like winter weight) - I fit my 2.6 lb 15 deg bag in a 10L sack with no problem. It's fine in this too but I have more room. Also good for clothing, jackets, etc.There's 3 big advantages to this bag:1. It's ultralight. Seriously feels like it weighs nothing.2. It's compressible- anything you get in there, pull the straps and you'll eventually get it to nearly two-thirds- half the original size. I am able to fit things into my pack more easily this way.3. It's bombproof- the fabric is very thin and light, but it's also tough. You're not going to rip it easily, and it's clearly well made.I do not believe this bag claims to be waterproof- not sure. I'm guessing it may have some degree of water resistance- but it's not a "dry bag."I always go to S2S because I know they'll have the best bag for my needs. I bought this particular bag as "used-like new" and it got here lightening fast and looks brand new. It even came in the original packaging.These bags are pricy but worth it- you get what you pay for. That's why I jumped on this deal. The only better bag out there is S2S's new compressible sack with E-vent fabric on the end. The fabric lets air flow in only one direction (out) so once you fill it it will keep compressing- almost like a vacuum seal- amazing. But they cost double the deal I paid for this, and this is a darned awesome sack. You can seriously never have too many of these.
M. Hadden
Reviewed in the United States on August 4, 2014
A good compression sack that kept the rain out during my last motorcycle trip. I purchased the large but wish I would've purchased the XL now. It is stated that the large is 6 to 20L - I filled the sack and it seemed smaller than 20L, more like 10-12L at most. Otherwise, this bag is decently constructed, has nice pull string to cinch the bag closed, and nice durable pull straps to compress the sack. I've recommended it to my family and friends who travel. My wife recently used it in her carry-on to maximize the amount of "stuff" should could bring with her.
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