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2/24/2024 1:45:10 PM EDT
I’m exploring options for compression bags. Anyone know if there’s a style of compression bag out there that has an air release valve?

I’m thinking of a bag similar to a vacuum seal bag with a release valve, but uses direct pressure applied by hand to compress air out instead of a vacuum.

Use would be for over and under quilts, hammock and clothes.
2/24/2024 2:03:54 PM EDT
[#1]
Compression roll up bags
3/5/2024 7:09:03 PM EDT
[#2]
Sea to summit makes one called the evac?  And it wants air out at the bottom the more you compress but won’t let air or water in
3/5/2024 7:20:36 PM EDT
[#3]
USMC MACS bag, they have a one way air valve on the side so as you compress them the air pushes out but can't come back in.

https://www.amazon.com/SealLine-USMC-MACS-Sack-Bags/dp/B00KXIA52C
3/5/2024 9:49:29 PM EDT
[#4]
Quote History
Originally Posted By D_Man:
USMC MACS bag, they have a one way air valve on the side so as you compress them the air pushes out but can't come back in.

https://www.amazon.com/SealLine-USMC-MACS-Sack-Bags/dp/B00KXIA52C
View Quote




I have a bunch of those bags and really like them and use them all the time.  But, I have had a few leak at the valve.  Splashing water will be fine but not if submerged.
"It behooves every man to remember that the work of the critic is of altogether secondary importance, and that, in the end, progress is accomplished by the man who does things."
Theodore Roosevelt
3/5/2024 9:59:16 PM EDT
[#5]
Quote History
Originally Posted By Vdab890:
Sea to summit makes one called the evac?  And it wants air out at the bottom the more you compress but won’t let air or water in
View Quote



https://seatosummit.com/products/the-evac-compression-dry-bag
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3/8/2024 9:35:10 AM EDT
[#6]
I use dyneema dry bags that I buy off Etsy. I compress my 20 degree Enlightened Equipment quilt down extremely small using one and it's waterproof.
"Either way, I don't give a damn what you think you're entitled to!"
11/24/2024 6:29:02 PM EDT
[#7]
Quote History
Originally Posted By D_Man:
USMC MACS bag, they have a one way air valve on the side so as you compress them the air pushes out but can't come back in.

https://www.amazon.com/SealLine-USMC-MACS-Sack-Bags/dp/B00KXIA52C
View Quote

Venture Surplus has them in stock.

$30 for 19" wide by 27" fill.
"Life is too serious to be taken seriously" - Ray Bradbury

KoW callsign 'Ribs'
11/24/2024 9:03:32 PM EDT
[Last Edit: ColtRifle][Edited] [#8]
Quote History
Originally Posted By D_Man:
USMC MACS bag, they have a one way air valve on the side so as you compress them the air pushes out but can't come back in.

https://www.amazon.com/SealLine-USMC-MACS-Sack-Bags/dp/B00KXIA52C
View Quote



I also like the MACS sacks. Been using them for at least 15 years when I was last issued them. I also have had minor leaks so consider them to be enhanced splash protection only.

I also have a few Earth Pak and Piscifun rubber bags from Amazon and those HAVE been waterproof as long as they are rolled tight. Really like them. Very durable. Pretty sure both are made in the same place. All mine are larger than the MACS sacks.
"It behooves every man to remember that the work of the critic is of altogether secondary importance, and that, in the end, progress is accomplished by the man who does things."
Theodore Roosevelt
11/24/2024 10:27:11 PM EDT
[#9]
I use compression sacks by Granite Gear and Sea To Summit, they don’t have valves but both have eVent bottoms that allow air to be pushed out but don’t let water in. GG uses sil-nylon for the body, S2S uses PU-coated nylon. I’ve never had anything get wet in either of them despite hiking in some pretty heavy rain. I like the GG bags a little better, they don’t have bottom grab handles to make emptying easier but they’re lighter and are rectangular to minimize wasted space in packs. I have had the seam tape come off my oldest one, there’s a lifetime warranty but I just removed the tape, cleaned with alcohol, and applied seam sealer.
1/9/2025 11:30:08 PM EDT
[#10]
Quote History
Originally Posted By criley:
Compression roll up bags
View Quote



I use these when packing for air travel. Excellent to fit a lot of clothing in a smaller carry-on bag.
2/5/2025 7:15:56 PM EDT
[#11]
Ran across these at Coleman's, no personal experience, though: Coleman's - USGI Dry Bag
Description says "Made in USA by the authority in dry bags- SealLine", and they measure 14 in high x 6 3/4 in wide. Currently 20% off with code: ACTION20.
“War is a racket….”
Smedley D. Butler, Maj.-Gen., USMC

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