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Sea To Summit eVent Compression Dry Sack

Sea To Summit eVent Compression Dry Sack

Item #STS0002|196 in Stock – Ships Fast
$23.90 - $41.90
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One Color, S (27.90)
One Color, M (31.90)
One Color, L (36.90)
One Color, XL (41.90)
One Color, XS (23.90)
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Sea To Summit eVent Compression Dry Sack

Sea To Summit used waterproof breathable eVent material to make the first waterproof compression bag without a valve—the eVent Compression Dry Sack. Close this Sea To Summit compression sack, and the breathable material vents air as you cinch the compression straps. No more soaked sleeping bag after a rainy day, and no more valve poking you in the back as you hike. On top of the water protection and low bulk, the eVent Compression Dry Sack weights a scant 5.2oz (medium size).

Bottom Line: 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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Rating for this product: 2

Had Trouble with Leaking

By:
November 25, 2008

Took this bag on a four day test run down the river. The bag leaked every day. Tryed different methods of rolling the top, different number of rolls, different tightness. I worked pretty hard trying to get the bag to work out, drying it overnight and trying again the next day. perhaps I got a bum bag, but to keep important things dry, I do not recommend.

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Rating for this product: 5

Over-priced, but cool as hell

By:
February 10, 2009

This is a great stuff sack that I picked up on a super sale. It does exactly what is says, allows air to pass out of the bag while compressing... and remains waterproof. My sleeping bag went swimming on a canoe trip (along with the rest of my gear) and emerged dry as a bone. Durable, light, simple... just not cheap.

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I have a western mountanier badger, will the medium size will

I have a western mountanier badger, will the medium size will be good to pack it?.
Thank you

By:
June 11, 2009

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Yep, Medium will be the one. Assuming that your bag stuffs down to about 136cu/in, the Medium sack will work having an estimated volume of 144.

By: Backcountry.com Employee
June 11, 2009

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Rating for this product: 5

Great Bag

By:
March 25, 2009

I bought the XS originally for my down sleeping bag, but I could only get it to close after 15 minutes of effort, so got a S and it works perfectly. Keeps everything dry and well compressed. The eVent on the bottom is awesome. I kept the XS and it works really well for keeping a spare outfit dry. I also use it on kayak/canoe trips to hold my lunch, camera, sunscreen, etc.

Really a great buy, and I've had no problems with leaking even though I completely submerged it.

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Rating for this product: 5

Nice Sack

By:
June 17, 2009

I was worried about how much i could pack into the sack along with my sleeping bag and how small it would compress down to when i bought it. Even more worried when i saw the package it came in, but this compression sack is really cool. For its size (I bought the large) this thing hold alot. I was able to fit in a quite large sleeping bag (normally about 16x9) along with three pairs of socks, 4 pairs of boxers, 3 tee shirts, a pair of pants, and a thick sweat shirt down to about the size of a medium watermellon. Didn't get to test it much with water, other than water container condensation, so i don't want to say anything untrue. Pretty easy to get compressed down once you figure it out, and the way it vents air makes life so much easier.

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What size of a compression sack would be suitable for storing

What size of a compression sack would be suitable for storing clothes? Fleece top, 1 pair of pants, 2 shirts, top/bottom base layers?

By:
April 21, 2009

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Hey Chris,
I have two mediums that I'm taking to Denali for clean and dirty clothes. They seem to fit everything I need for an extended expedition (clothing wise) without any problems.

By: Backcountry.com Sponsored Athlete
June 22, 2009

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It's difficult to determine the proper size without knowing the size and material of the clothing you wish to compress. The easiest way to determine this yourself is to take all the items you wish to compress and place them in a bag and slightly compress the bag (a plastic grocery bag works great for this) until you get a rough square. Take the measurements H x W x D and multiply them together to get the volume in cubic inches (or centimeters).

Next, figure out the closest cubic inches (or cm) of the compression sack. Since the sack is a cylinder, you can either use an online volume calculator or do it yourself (I've provided the cubic inches for these sacks below). To figure the volume of the bag, take the radius (typically 1/2 of the smaller measurement) multiply that number by itself then multiply that number by 3.141 and then multiply that by the height of the cylinder, which is typically the larger measurement. So, for the smallest sack here (XS), the dimensions are 6x14in, which = ((3*3)*3.141)*14 = 396 cubic inches.

So, after you know the cubic inches of your gear, match that to the cubic inches of the sack. Say your very slightly compressed gear takes up approx. 790 cubic inches, you could go with a small or a medium. I generally go a size larger (medium, in this instance) because I am too lazy to pre-compress my stuff into the sack.

XS = 396 in^3
S = 616 in^3
M = 904 in^3
L = 1272 in^3
XL = 1991 in^3

By:
April 22, 2009

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Rating for this product: 5

hmm

By:
June 10, 2009

I have this same bag and never leaked. You do have to roll the top at least 3 times.
If your's leaks then you should test it by filling with water and check for seapage after awhile.
Two rolls of the top does leak a bit, not alot, just enough to irk ya.

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Rating for this product: 5

Sweet

By:
March 23, 2009

I bought this to help protect my Big Agnes Pomer Hoit 0 degree down bag (awesome bag by the way...), and it is awesome. NOTICE: It is NOT meant to be submerged by any means, and it says that in the description. It will hold up if it falls out the canoe or gets heavy rain, but when you put it under water the pressure tries to equalize and forces water into it. If you want something that works, I would go with this b/c I have used it for a 2 years now and have not had a problem with it.

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Good evening, I own a Eureka 3 season Mountain Pass 3 person

Good evening,
I own a Eureka 3 season Mountain Pass 3 person tent. My original stuff bag is totally dismantled over the years. Would a compression dry sack do the work to reduce the size? If so, what size would you recommend for the measurement of: Pack size: 20' * 7 Weight: 7lbs * 8oz?
Thanks

By:
April 21, 2009

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Your packed tent takes up about 770 cubic inches (thank you for providing the measurements), which is about 12 liters. You can go with a small, but getting it packed into the bag might be a little tough since you'll have to stuff it just to get it to fit. A better choice would be the medium, with a max liter size of 14. You could easily stuff the tent into the bag and then, in theory, compress it down to a minimum of 275 cubic inches (4.5 liters). You won't get that without a press or some significant applied weight, but you will get the tent seriously compressed, maybe by as much or more than 2/3 the original size.

By:
April 21, 2009

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Rating for this product: 5

Tighter than a nun

By:
June 6, 2009

I've gone on several weekend kayak trips with this bag. It's been submerged underwater for several minutes, yet it still kept my sleeping bag dry. I will be buying these for all of my gear.

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Rating for this product: 5

sweet!!!!!!!

By:
April 6, 2009

That's bout all I can say for this sack is WOW!!!! I'm an ol skewler and have recently gotten into the ultralite/lightweight packing in the last year. Been gearing up for the AT next year and have poured over Backcountry.com and Backpacker magazine for tips on what gear to purchase. I've never used a dry sack, ever to be honest, but knew I would need some form of one for at least my sleeping bag. I own the Lafuma X950 Pro so I bought the Small sized event dry compression sack. I haven't tried it out in wet conditions...but after all the gear reviews I have read here and various other places I am confident my bag will be safe from water. However, if you are new to roll top closure bags there is a learning curve; don't feel ashamed to have to conjure up a gear head through the online chat feature here to get some advice on exactly how that works, lol!!! Long story short, once I finally figured out how this thing closes up I pulled my sleeping bag out of its tote bag and stuffed it in my event sack. After kneeling down on my bag with one knee I was able to cinch the compression straps within an 1/8 inch of their maximum. To put it in a nut shell I just cut 6 inches vertical packing height (if I remember my math correctly that wouold be 42 cubic inches altogether since its app. 7 in diameter...may be wrong) from my packing interior of my bag. That may not seem like much but I am only using a 3000 cu. in. pack for the AT so app. 42 cu. in. is a world of difference in this pack. I guess the lafuma pack bag now gets duty for something else that doesn't need water protection. Some people may think the price for this item is steep, but to me it is worth every penny just for cuttin down on packing volume, I'll say it again, "WOW!!!!" If you're interested in this then I highly recommend because these compression straps haven't budged one bit and loosened up since I cinched it all down...nice!!!!! I will be getting more of these for my clothing and electronics.

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I have a Western Mountaineering Megalite bag regular size that

I have a Western Mountaineering Megalite bag regular size that comes in a 7x13 stuff sack from WM. I need to pack this smaller than that. What size compression sack should I get and how small do you think I can reasonably get to with a compression sack? I am open to any manufacturer --but would like to have an S to S or Granite Gear if possible. Thanks!

By:
March 23, 2009

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I'd have to agree with Mike on this question. I too got a stuff sack with my bag that's about the same size. I bought the S2S compression pack (small) and can pack my bag down to the size of slightly larger than a grapefruit. With the bag alone I have no more compression strap left to cinch up. It's pretty dang neat. I have been trying to save space in my 3000 c.i. Golite jam2 pack, which is why I went with the compression pack over the regular roll top closure. I've totally gotten rid of the stuff sack that came with my tent aside from the one for the poles. I now stuff my tent, footprint, and fly into a regular rolltop closure S2S drysak then throw that sack into the small compression sack listed here along with my sleeping bag. Talk about crazy space savings and packability. Of course I had to rethink my packing, but once I got that dialed up it's almost like my pack grew more space. I highly recommend these compression event saks, not only for the waterproof usage but it can save you mad space in the end, which meant everything for me getting ready for the AT.

By:
April 20, 2009

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My bag came with the a similar 7x13 bag, and I found that putting it into the XS took too much time and effort. I use the S and like it a lot. The compression sack swallows the bag easily, and then I can cinch the straps down to get it pretty small. I haven't measured it when it's fully compressed, but it's a little bit smaller than in the stuff sack it came with (football-size instead of bread box-size).

By:
March 25, 2009

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Rating for this product: 5

WOW!!!!!!!

By:
March 11, 2009

That's bout all I can say for this sack is WOW!!!! I'm an ol skewler and have recently gotten into the ultralite/lightweight packing in the last year. Been gearing up for the AT next year and have poured over Backcountry.com and Backpacker magazine for tips on what gear to purchase. I've never used a dry sack, ever to be honest, but knew I would need some form of one for at least my sleeping bag. I own the Lafuma X950 Pro so I bought the Small sized event dry compression sack. I haven't tried it out in wet conditions...but after all the gear reviews I have read here and various other places I am confident my bag will be safe from water. However, if you are new to roll top closure bags there is a learning curve; don't feel ashamed to have to conjure up a gear head through the online chat feature here to get some advice on exactly how that works, lol!!! Long story short, once I finally figured out how this thing closes up I pulled my sleeping bag out of its tote bag and stuffed it in my event sack. After kneeling down on my bag with one knee I was able to cinch the compression straps within an 1/8 inch of their maximum. To put it in a nut shell I just cut 6 inches vertical packing height (if I remember my math correctly that wouold be 42 cubic inches altogether since its app. 7 in diameter...may be wrong) from my packing interior of my bag. That may not seem like much but I am only using a 3000 cu. in. pack for the AT so app. 42 cu. in. is a world of difference in this pack. I guess the lafuma pack bag now gets duty for something else that doesn't need water protection. Some people may think the price for this item is steep, but to me it is worth every penny just for cuttin down on packing volume, I'll say it again, "WOW!!!!" If you're interested in this then I highly recommend because these compression straps haven't budged one bit and loosened up since I cinched it all down...nice!!!!! I will be getting more of these for my clothing and electronics.

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Rating for this product: 5

Wicked Awesome

By:
December 18, 2008

This bag is amazing. Totally waterproof and excellent compression plus it just looks cool. Also you can't beat the price! For an extra $5 you get a totally waterproof sack to protect your gear. I use my small for a 15 degree down bag and there is still a little room to spare

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I have a synthetic stuffed long Kelty sleeping bag. In its stock

I have a synthetic stuffed long Kelty sleeping bag. In its stock sack the bag measures about 19" high by 10" wide but when I sit on it I can compress the sack to ~2/3 the height. Which size of eVent sack could effectively compress my bag the most? Thanks.

By:
March 7, 2009

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I chatted with Sterling H., an online rep, and he informed me that a size Large would do just fine. Thanks man!

By:
March 7, 2009

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Rating for this product: 5

Excellent

By:
November 18, 2008

Bought this for my down sleeping bag. Being in the PNW we see a lot of rain and it keeps my bag completely dry. For the test before I hit the trail I submerged it(which it instructs you not to do) in the tub to see how it worked. The sack just rocketed back to the surface and when I opened it there was no moisture. Highly recommended.

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Rating for this product: 5

Best of the best

By:
June 9, 2009

These are the real deal. Used one for my tent, my down bag and all my clothes on a backpacking trip. It was wet and raining the whole time. Everything stayed dry and I was not gentle on these and they held up. I've never used another brand and never will. Don't waste your time with other brands these are well worth the money, you wont have to buy anything else ever!

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How big of a stuff sack would I need to hold in 3 xl t shirts,

How big of a stuff sack would I need to hold in 3 xl t shirts, a long sleeve shirt, two xl pairs of pants, and an xl fleece?

By:
December 11, 2008

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I'd definitely suggest the XL.

By:
December 11, 2008

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depending on how you fold it probably a medium. I have a long sleeping bag, fluffy fillow, sleeping pad all inside my XL size.

By:
March 23, 2009

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Rating for this product: 5

Nice & Light

By:
April 1, 2009

Nice and light. I can fit my sleeping pad and my -25F down bag in the XL size without too much wrestling.

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Rating for this product: 5

this is why li love'em

By:
August 22, 2008

1. waterproof - yes I've thrown in in the lake. no leaks, note i didn't leave it there for more than a min. but that's good for me
2. unlike a lot of sacks out there it's hard for me to max out on the straps wile compressing. nothing more annoying than still being able to squish the sack down more with my hands but the strap is pulled all the way out.

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I'm looking to buy a compression back for my mummy bag but

I'm looking to buy a compression back for my mummy bag but I don't know wut size i would need to get, small, medium, large or extra large. And also would this fit in an internal pack?

By:
December 7, 2008

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Rating for this product: 5

awesome

By:
March 27, 2009

I don't have anything negative to say about my eVent dry sack. It keeps everything dry, it's lightweight, and the compression really saves space. I've beat it up pretty good and there aren't any signs of wear as of yet. I have not submerged mine in water but I have used it in rain and it has held up as advertised. The price may be steep but the piece of mind of having dry stuff is worth it.

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Rating for this product: 5

Totally waterproof protection for you down sleeping bag

By:
December 20, 2006

I got this to protect my down bag in wet environments and it keeps it totally dry and compresses to an smaller size. The straps are strong and the bag is durable. Can't complain about this bag in any way.

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how many times do i have to roll the top so it won't lea

how many times do i have to roll the top so it won't leak?

By:
May 18, 2008

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as much as you can but at least 2 or 3

By:
August 21, 2008

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Rating for this product: 5

Awesome Bag

By:
April 6, 2009

I am really happy with the way this bag performed. Be careful about pulling the straps the wrong way though, I got a little agressive with mine and the stitching came undone a little where the buckle straps connect to the eVent material. It worked just like the description says though, and it is a pretty cool bag..

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Rating for this product: 4

Good Bag

By:
May 20, 2009

As for the compressibility of this bad boy, nothing comes close. I got two (one for my sleeping bag and one for my clothes ) and they worked great for giving me more space in my pack. I used them for a trip this past week into the Smokies (Clingmans Dome area) and while we were camping one night, we got a pretty solid rainstorm for about an hour. We had one we were using as a bear bag and we didn't have it covered or anything so it got the full force of the rain. When I checked it the next morning, there was some moisture on the inside of the bag (uh-oh) but nothing was soaked, just sort of damp. Fortunately we didn't have anything in there that NEEDED to stay dry. Overall, I think this bag would be good for backpacking because it gets stuff to such a small size and you've still got your pack to keep out the rain, but if its just this sack and water, I'm not sure how dry your stuff will stay.

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How do I know what size to get for my down sleeping bag?

How do I know what size to get for my down sleeping bag?

By:
March 21, 2008

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Call or email your bags manufacturer and they will give you a size in inches to go by as: 8x18.i use a small for my 15 degree down bag and an XS for my 40 degreeActually it does not hurt to err on the larger side. If the bag is too big, you can always cinch it down, or fill it with more gear you dont want wet.

By: Backcountry.com Employee
November 6, 2008

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Rating for this product: 5

Does the Job

By:
April 1, 2009

I have not dunked the bag but it did shed water on my last trip. It does compress very well but be sure to leave a few inches at the top so you can properly roll the top down. I found that to be my biggest issue before the bad is compressed. It is very easy to compress and will allow people to get ever smaller packs. One day, we will only need purses...

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Rating for this product: 5

Sweet bag

By:
June 20, 2007

Great compression sack, not a leak. Solid construction. I got one size up and use it as a a waterproof bag to hang my food at camp once my sleeping bag is unpacked.

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Rating for this product: 5

Amazing

By:
October 30, 2008

I used this pack on a week long sea kayaking trip. On the second day it got real choppy and the compartments became full of water lucky for me this great design paid off and my bag stayed dry. Thanks Sea to Summit!

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Rating for this product: 5

In The Bag

By:
October 10, 2008

Waterproof! If you need to keep stuff dry and compressed, buy this bag.

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Rating for this product: 5

COMPRESSION

By:
October 24, 2008

This is an awesome waterproof compression sack. Buy one, you won't regret it.

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Change me.

Tech Specs:

Material:
eVent 
Closure:
Roll-top with compression straps 
Volume:
[XS] 6/2L; [S] 10-3.3L; [M] 14/4.5L; [L] 20/6.7L; [XL] 30/10L 
Dimensions:
[XS] 6 x 14in; [S] 7 x 16in; [M] 8 x 18in; [L] 9 x 20in; [XL] 10.5 x 23in 
Backpack Straps:
No 
Weight:
[XS] 3.7oz; [S] 4.5oz; [M] 5.2oz; [L] 5.9oz; [XL] 7.4oz 
Warranty:
1 Year 
Country of Origin:
China