





💼 Pack smart, stay dry, and own every adventure.
The Sea to Summit Ultra-SIL Compression Dry Sack is a 10-liter ultralight dry bag designed for backpackers and outdoor pros who demand maximum space efficiency and waterproof protection. Made from durable 30D Ultra-Sil Cordura nylon with a 2000mm waterproof rating, it compresses bulky gear to one-third its volume using a secure roll-top closure and four compression straps. Reinforced seams and a patent-pending quick-replace buckle ensure long-lasting reliability and easy field repairs, making it the ultimate companion for hiking, bike touring, and any wet-weather expedition.







| ASIN | B00HS3ATY4 |
| Best Sellers Rank | #513,619 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #707 in Marine Dry Bags |
| Brand Name | Sea to Summit |
| Color | Grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (435) |
| Date First Available | January 9, 2014 |
| Item Dimensions LxWxH | 7.87 x 3.94 x 3.94 inches |
| Item Package Dimensions L x W x H | 7.76 x 4.88 x 1.61 inches |
| Item Weight | 0.09 Kilograms |
| Manufacturer | Sea to Summit |
| Material | Nylon |
| Model Name | Fba_1700428 |
| Model Year | 2014 |
| Package Weight | 0.09 Kilograms |
| Part Number | FBA_1700428 |
| Size | S / 10 liter |
| Style | Small / 10 Liter |
| Warranty Description | Manufacturer guarantee against defects in materials or workmanship for the lifetime of the product |
U**E
Well made, lightweight, does the job
I needed a way to waterproof my hammock (Warbonnet Blackbird) in its Bishop Bag. This fit the bill perfectly. It is well made, functional, and kept the hammock dry during a bushwhack down a creek with multiple crossings, one swim, and a pounding thunderstorm with hail and epic rain. The bagged hammock fit in the XS size nicely and compressed down to a compact bundle. I like it. I just bought another XS, and in addition one of the XXS for a planned kayak trip I have coming up. I have no issues with straps twisting, loosening, or anything else. This is a piece of lightweight/ultralight gear-- it takes a bit of focus when using and it needs to be handled with a modicum of care. If you want something that takes zero thought to use there are simpler (and heavier) options. This is a good product that does the job.
M**0
The XXS is key for a travel neck pillow
Neck pillows seem like a godsend on a long haul flight, but I'm always surprised at how few people use them. At least part of it must be that they're SUPER bulky, and in this day of rollaboard, no checked bags airtravel, every inch counts. Enter the Sea to Summit Ultra Sil compression sack, XXS size. First of all, amazing that you can get a compression sack of this quality in this variety of sizes. Waterproof, durable and easy to use--these things are amazing. Most high quality neck pillows are made of polyurethane foam, like memory foam. Therefore they're ideal for compressing into minimal volume. Cabeau, Travel rest, etc. The simple nylon sacks they come in have no compression capability save for maybe a single Velcro strap. With this stuff sack, you can get at least 4:1 compression.
C**N
Key update to the top compression dry bag
Great update to an already awesome bag. This bag is extremely waterproof. The compression + venting make it ideal for packing tight. You can really pull down on the straps to get the contents small. It works well for clothes, sleeping bags, food, tents, and other items that need to be protected / organized. This Ultra-Sil bag is slightly less durable than the original eVent compression - but I like this version better. The Small is 10 Liters (pictures below) - good for an extremely small sleeping bag/quilt, a puffy jacket, or a change of clothes.
D**S
THE BEST FOR BACKPACKING
This Ultra Sil version of the E-Vent compression sack is similar to but much lighter than the regular E Vent compression sack. Both are water proof but this one is best for light backpacking. It is minimal. It works perfectly. Don't expect to slam you gear into it and then crank down on the straps. Pack it carefully and then push down on it as you take the slack out of the straps. Excellent product.
K**Y
compresses sleeping bags very well
compresses sleeping bags very well
E**.
Ultra light, water tight, and super compressible dry bag.
I needed a dry bag to keep my extra clothing dry while backpacking and these bags were recommended to my by another seasoned backpacker. I had originally bought one of the regular compression dry sacks (the non ultra sil version) and I had liked it very much. When it came time to purchase another dry bag I chose the ultra sill version this time. When you compare this to the original it seems a little less durable but its performance has stood up just as well while weighing less. What sets these bags apart from other types of dry sacks in the eVENT technology that lets you compress your dry sack by letting all the air out while still remaining water tight. I bought the 6L size bag which is about big enough to fit a couple extra pair of socks and underwear, an inflatable pillow, a travel size towel, and a set of thermals. While this is the perfect size for my needs, if you intend on carrying more clothing I would recommend the next size up.
A**R
Impressed with Compression
This compression dry sack did the job and did it well. Crushed down 2 shirts, 1 shorts, 3 underwear, fleece long sleeve, and long johns to about the size of a cantaloupe. Was never in a wet situation at the campsite but I'm confident the brand woudn't claim something that wasn't true. Would recommend to anyone looking to keep things small and dry.
G**F
Holding up extremly well now for four years use!
I cram a lot of stuff in here and really compress it down. So far, no failures in any seams. I haven't tested soaking it or anything like that. I put my clothes in one of these and my sleeping bag in another one of these. I'm assuming they will repel water as advertised and I'll wait for the day that I'm drenched to see if they really work. The best part is that the material really holds up. I purchased these four seasons ago and have taken them on seven, one-week trips now. I've packed and repacked them probably 20-30 times at least and still no failures. And I pack them, then sit on them to really squish them down, then pull the straps tight. It's really dense when I'm done. I am very careful to be sure I am evenly distributing the tension and not just pulling like crazy in all directions. That may make the big difference as I'm not being sloppy about it.
ア**ス
NANGAのダウンジャケット携帯用に購入しました。無理しないくらいで収納できます。これより大きければブカブカだし、これより小さければ収納に苦労するか、といったところです。 圧縮はそれなりですが携帯用としては満足できます。公式の袋もあるようでしたが値段もそれほど変わらず、防水は信頼がおけるメーカーで、圧縮機能がわかりやすい当製品を選んで正解だったと思います。
J**K
Praktischer Kompressionssack um zum Beispiel Schlafsack und Kleidung zusammen zu komprimieren um den Platzbedarf im Rucksack zu reduzieren. Dünnes Gewebe und daher nicht sehr robust ... also das richtige Produkt wenn das Gewicht wichtig ist und der Kompressionsack nochmals verpackt wird (zum Beispiel im Rucksack).
D**N
I just bought a new larger bag. I had a smaller one of these for my old bag so I just had to buy one for new bag. Delighted to find it even lighter and better than my original event stuff sac.
A**.
I haven't used it yet but seems to be really good quality and I love the way it expels air while compressing.
T**S
Top of the line product, before using watch an instructional video or 3 on how to use a compression sack, or its possible to damage the sack if improperly used.
Trustpilot
2 weeks ago
2 months ago