Description
Shave weight off your compression sack system, and make it waterproof by switching to the Sea To Summit eVent Compression Dry Sack.
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Share your thoughts
What do you think of the
Sea To Summit eVent Compression Dry Sack
? Share a...
I'm a fan
kzoodan
Member since
I have two of these compression/dry sacks. One in size medium for my wife who insists on bringing half the closet, and the small for myself.
The medium holds a hoodie, and 4 days worth of clothes for her.
The small holds fleece and 5 4 days worth of clothes for me.
Both bags passed the bathtub test with flying colors. I have yet to encounter a downpour I was't prepared for in the woods, but I'm confident I'd have dry clothes with these in my pack.
The bags both compress an incredible amount, and the eVent fabic at the bottom lets the air, but not water in.
Awesome
mattymeis
Member since
I don't know how I made it without one of these. They compress so much and will open up a lot of space in your pack.
Made a believer out of me.
pgunnz
Member since
I am usually wary about compression bags because a lot of the time they are just added weight for little compression. I have used the eVac dry bags for clothes and my sleeping bag and they worked pretty well. I decided to try the compression version after all the positive reviews and was truly impressed. It got my long Marmot Sawtooth down to a little bigger than a basketball. It is really easy to use and I know it will keep the down nice and dry.
Back for Another
Carson Dunbar
Member since
I hunted these suckers down when I saw them in the Backpacker Magazine Gear guide back in '07. I've been using the same one up until last weekend. It's held up and maintained waterproofing the whole way. Last weekend it had an unfortunate introduction to a sharp tree branch.
This is BY FAR the best dry sack I've owned. and having four compression straps makes cinching things down, well a cinch! I used a medium for my North Face Aleutian and it managed to pack it down smaller than a volleyball! It saves so much room in your pack for other gear.
A straight up must have for any backpacker.
Great product.
Lyle
Member since
I use it for my Marmot Couloir long 0 degree (800 fill) down bag.
The large was the best size, and I tried it in medium through XL. When picking your size I'd recommend going up a size if you have any question. The larger circumference will make it easier to stuff and since its a compression sack it'll just be a little shorter to achieve the same volume. I would choose by circumference/width, not so much by volume, as any extra volume will be compressed. Also, being a roll top you need some extra length... The large says its 20", mine measures 23" unrolled but if I were to only have 3" on top to roll closed it would be nearly impossible. I have about 7" extra when I stuff my bag in and it makes it easy to close. Once it's compressed the extra length is irrelevant.
Having said all that, this is a fantastic piece of gear for anybody taking a down bag or anything else they'd rather not get wet into the backcountry. Under the right circumstances this bag could save your life, or at least save you some serious discomfort! It also breathes much better than any dry bag I've previously used.
I use it backpacking, usually in winter mountaineering situations.
Ive got the sierra designs zissou lite...
Justin
Member since
Ive got the sierra designs zissou lite dridown sleeping bag, it says 7x16 stuff sack size. Should I go with the same size [S] 7x16 or smaller [XS] 6x14 ? Can anyone help me out? Im not trying to fight the bag into the sack every morning or run the chance of damaging it. thanks for the help.
Pat Palmer
Member since
Don't go smaller than what the manufacturer reccomends. You'll end up with a fight every time when packing up your bag.
Lyle
Member since
I'd go with the medium actually. The mouth of the sack seems slightly smaller than the width of the rest, unlike my regular stuff sack where the mouth is at least as wide as the rest of it, if not the widest part of the sack. Going up an inch in width will make it easier to stuff and any extra volume will just be compressed.
Great compression sacks.
Adam Lloyd
Member since
Seem top notch quality, and definitely waterproof.
I use the small for my Ambler jacket, the medium for my Ridge Runner 15, and the XS for my Transcendent Hoody or Warm and Light 650.
Which size bags would fit my womens Helium...
Brad V
Member since
Which size bags would fit my womens Helium and my mens Helium long membrain or are they both going to fit in the same size?
Phil Maher
Member since
Hi Brad,
For any compression sack, size it the same as the the stuffed dimensions on the sack that came with your bag(s). I think for the Heliums that's about 6x12". For this STS comp sack, that works out to the Small. That said, my tendency is to accept a slightly larger diameter (but still the same finished length) in trade for not fighting stuffing and rolling the top of the sack every morning, so I always use one of my mediums for my Marmot 0*. Too much compression, too often, really damages down...just so you know.
Could Not Be More Impressed
Will Palmer
Member since
Have used these things to hold everything from clothes to my tent and sleeping bag. Compresses down to smaller than anticipated and is waterproof like you wouldn't believe. If you are thinking about getting this just stop whatever you are doing and buy it NOW.
What size would be good for the marmot...
Michael
Member since
What size would be good for the marmot limelight 2p tent (body, footprint, fly)? The packed dimensions of the tent is 7x21, so minus the poles I dont know what size compression sack to use.
Phil Maher
Member since
Hey,
Large might seem the logical choice because of the volume comparison to the 7x21", but go with a Medium. You still won't have to fight to stuff it every morning on the trail, and it'll go in easily and honk down to as small as you're going to get it.
What size should I pick for my WM Versalite...
foxp114045
Member since
What size should I pick for my WM Versalite sleeping bag?
Phil Maher
Member since
Honestly, my WM bags are the one thing I don't ever compress. But, I would use a Small and be sure to give it extra time to loft back up before you plan on crashing out.
Perfect addition to you gear
Rachael Van Dolah
Member since
- Gender: Female
- Familiarity: I've used it once or twice and have initial impressions
This compression dry sack is nice and light weight, easy to close and compress, durable, and overall a great addition to your gear.
Great bag.
Adam D
Member since
There's a reason it received Backpacking's Editors Choice Award.
Cannot find a fault
tdt100241911
Member since
- Gender: Male
- Familiarity: I've used it several times
Purchased 9 bags for a bunch of scouts sizes sm to large mostly for the sleeping bags (see Kelty cosmic down 20 degree) and found no fault the kelty down fit tight in the sm but very easy in the medium with no noticeable difference in compression. Not a single one gave us any problems.
Worth the $$$$
Dave
Member since
- Gender: Male
- Familiarity: I've put it through the wringer
I use one whenever Im using my winter bag. this sack a) reduces the size almost by half as the included stuff sack and b) is waterproof.
I had tried a lighterweight cheaper compression sack (which wasnt waterproof) and blew out the seams and straps when trying to compress my bag. Not a problem with this bag, while it may cost a bit more as well as weigh more its very durable and will last a lifetime, and its waterproof to boot!!
What size for aMountain Hardwear UltraLamina...
gurp212004
Member since
What size for aMountain Hardwear UltraLamina 15 Sleeping Bag. Packed Size: Regular: 7" x 12"
Geoff Conner
Member since
A size Large would work for this bag. Since it is a synthetic, it is not going to pack down as small as a down bag would at this temp rating. A medium would probably be pushing it.
pgunnz
Member since
I have gotten my synthetic 0 bag into the 20L with ease. It won't pack down as small as my down bag but it still fits in the sack.
Reeeeeal good
Reed Rombough
Member since
- Gender: Male
- Familiarity: I've used it once or twice and have initial impressions
This thing is sweet, a waterproof compressible, genius!
Effective, but Expensive
BzBrian
Member since
- Gender: Male
- Familiarity: I've put it through the wringer
For the price, you're really just buying a bag. It compresses your sleeping bag well but it's not as easy as you may hope--yet still easier than other compression sacks.
The eVent doesn't work like magic but I guess it works well.
Just buy it as you won't need another one and forget about it.
Still, it's hard to justify the price.
I have a -20 Sleeping Bag, what size Sea...
oli563982206
Member since
I have a -20 Sleeping Bag, what size Sea To Summit eVent Compression Dry Sack
should I get?
Dave
Member since
Its going to depend on what bag you have. Size of bag what kind of fill, is it synthetic or down, what kind of down 650 or 850 etc...
That said I have a large that I use with a Western Mountaineering 0 degree bag (850 down) and recently was able to jam a Feathered Friends -20 or 25 bag (also down) in the same bag.
Best compression Dry Sack on the market
Lawfarm
Member since
- Gender: Male
- Familiarity: I've put it through the wringer
Here's why this can't be beat:
1. Durable.
2. Waterproof. (I've tried to drown it...it keeps coming back).
3. Dead simple to use, with buckles and straps that function well.
4. No valve to malfunction, and yet it lets air out without any issues.
I've used it canoeing, biking and hiking. It's absolutely great.
View all contributions... Be patient, it might take a while.

Adam
Member since