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Sea to Summit eVAC Dry Sack

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Assorted
$21.95 - $36.95
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  • This valve-free dry sack uses a breathable base made of waterproof laminate fabric, which allows air to be pushed out yet prevents water from entering
  • Waterproof, breathable eVent laminate fabric base has reinforced stitching on all stress points for durability
  • Polyurethane-coated nylon body has double-stitched, sealed seams and reinforced stitching at stress points; white fabric allows visibility of contents
  • Waterproof, nonwicking Hypalon® roll-top closure locks in place with buckle—no compression straps needed!
  • Oval shape resists rolling when laid on its side

Imported.

View all Sea to Summit Roll-Top Stuff Sacks

REI membership

Best use Backpacking
Gear capacity (L)
3 LITER
3 liter
5 L
5 liter
8 LITER
8 liter
13L
13 liter
20 L
20 liter
35 LITER
35 liter
Gear capacity (cu. in.)
3 LITER
183 cubic inches
5 L
305 cubic inches
8 LITER
488 cubic inches
13L
793 cubic inches
20 L
1220 cubic inches
35 LITER
2136 cubic inches
Closure Roll-top
Waterproof Yes
Material(s) Coated nylon / waterproof breathable nylon/laminate fabric
Dimensions
3 LITER
11 x 7 x 4 inches
5 L
15 x 7 x 4 inches
8 LITER
17 x 8 x 5 inches
13L
20 x 9 x 6 inches
20 L
24 x 11 x 7 inches
35 LITER
28 x 13 x 8 inches
Weight
3 LITER
1.5 ounces
5 L
1.7 ounces
8 LITER
2.0 ounces
13L
2.4 ounces
20 L
3.0 ounces
35 LITER
4.0 ounces
Average rating

4.6

(23 reviews)

What do you think of this product?

Share your thoughts with the REI community.

  • Does what they claim.
    I've had many dry sacks over the decades, but never one that vented the excess air out! until now. I got the 20L one to keep my Marmot Col Membrain -20F (a BIG 800 fill bag) dry during winte...
    Read More
    I've had many dry sacks over the decades, but never one that vented the excess air out! until now. I got the 20L one to keep my Marmot Col Membrain -20F (a BIG 800 fill bag) dry during winter backpacking trips, and it fits perfectly. However, the air, as other reviewers have mentioned, DOES quickly leak back in ... but that is not a problem if u know the trick. What i do is cram the bag into the sac, fold and lock the top, sit or keel on it to get the air out (which makes it look vacuum-packed), then quickly stuff it into the sleeping bag compartment of my pack. Then it simply fills any excess space around it until it stops "inflating". Then i have found that i can easily cram in LOTS of clothing around all of the sides of it, because as i force the clothes into place more air simply leaks out to allow room, then it all just stays there nice and snug; brilliant product! I love this thing! I also have used it for recumbent tricycle touring on top of my back rack. While touring i carry a Marmot Lithium Membrain 0F 850 fill bag, and there is still enough room left over to stash my Marmot Hang-Time down jacked w/ hood (a good sized 1lb 6oz coat). I've been through a few light, misty rains, which kept everything dry, but i have yet to test it in a downpour. I've only used it on two short three-day tours, but if i were going to do a longer trike tour i would definitely get a dry bag w/ a more robust exterior, as the material seems like it could stag and tear easily if not treated gently. IMHO it's best use is inside of a pack where it performs w/ 5 stars. Also, it's so light u won't even know u are carrying it!
  • An exceptional sack keeps articles secure and dry
    I bought this evac sack on the day of a cycle, camp, and hike adventure. It works as described, and is well worth the money. The 35L evac sack kept two sleeping bags secured on a bike rack, ...
    Read More
    I bought this evac sack on the day of a cycle, camp, and hike adventure. It works as described, and is well worth the money. The 35L evac sack kept two sleeping bags secured on a bike rack, to and from camp.(see picture) The lime green sack is REI's brand. Both sacks are a great choice. My only challenge was how to throw my leg over the bike. It is a great help when the quality of your gear is top notch. You spend less time repairing or replacing, and more time experiencing the great outdoors! (see pictures 2 & 3)
  • For when a compression sack would be to ridged.
    Nice for when you need to fit a bag in a odd shaped place left in your panniers. Allowing the air to escape lets it mold into places a fully compressed compression sack would be to stiff for...
    Read More
    Nice for when you need to fit a bag in a odd shaped place left in your panniers. Allowing the air to escape lets it mold into places a fully compressed compression sack would be to stiff for.
  • Keeps everything dry
    Bought this for my son for camping with the Boy Scouts this summer. They had a lot of rain while they were camping this bag kept all his clothes nice and dry.
  • Air will very slowly seep back in
    I have a few of these, that I use for keeping my sleeping bag dry, and for my clothes. While they're great for initial compression (like, when I'm putting my sleeping bag into my sleeping ba...
    Read More
    I have a few of these, that I use for keeping my sleeping bag dry, and for my clothes. While they're great for initial compression (like, when I'm putting my sleeping bag into my sleeping bag compartment), overtime, air will slowly seep back in. This happens with all 3 of the eVACs that I own, no matter how many times I roll the top. That being said, I have yet to find anything better. These bags have reliably kept my gear dry, in rainy conditions. I have not yet completely submerged them, so I haven't given them the "what if I fall in a river while crossing it" test. If you're chances of total submersion are that high, you should consider a heftier bag, like the Sea to Summit Big River. Otherwise, this lightweight bag is great for initially compressing gear that is kept inside your pack.
  • Dry Sack does its job
    I used it on a recent rim to rim to rim hike of the Grand Canyon. Rain wasn't a problem, but the dry sack did a good job of keeping the dust off of my extra clothing.
  • Great Dry Sack
    I really like the bag, it compresses easily and will carry more than you will ever need for even a 2 night backpack trip.
  • Technology has improved this neccesity
    I cant speak to durability as I have only used it once on a week long trip walking in the Scottish Mountains. The primary positive for me was the fact that the bag breathes so that when you...
    Read More
    I cant speak to durability as I have only used it once on a week long trip walking in the Scottish Mountains. The primary positive for me was the fact that the bag breathes so that when you are closing it up you dont have to push out all the air before you roll the top shut. It does it for you as you close it up.
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