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Ultralight Compression Sack - 5L


Our Lightest Compression Sack
COLOR alloy
SIZE: 1size - In stock
Infinite Guarantee
This ultralight compression sack reduces sleeping bags and other stuffables to a pack-friendly size. The siliconized fabric resists moisture and slides into your pack with ease. A pocket in the end cap keeps track of small items or can be used for self storage.
Fabric :
100% nylon
30D siliconized ripstop main body - 100% nylon
70D with TPU lamination compression ring
Dimensions :
15½” x 5¼” / 39 cm x 13 cm #242787: 17 5/8” x 6” / 45 cm x 15 cm 10L-
Volume :
Weight :
3oz / 84g 
  • Fabric Performance:
  • Compressible
  • Durable
  • Ultra Lightweight
  • Design Features:
  • Compression Straps
  • Internal Pocket Doubles as Stuff Sack


10L Compression Sack


I have the 10L size and can squeeze my -20 sleeping bag into it. Well made and has held up to the abuse of a jamming a too big sleeping bag inside. Super lightweight and easy to stuff since the material is so slippery.


Go to compression sack


It's the only compression sack I use. Great performance.


It works.


This is a superb compression sack. I've been using mine for years with synthetic bags, down bags, sometimes both at the same time! The stitching is tough and hasn't failed despite really cranking on the straps to squeeze the contents as much as possible to fit in a small pack. It is very effective at compressing its contents.


15L ultralight compression sack


Works great to stuff my older synthetic 15deg REI sleeping bag. Also works well for clothes when backpacking. Seems strong and durable. The pocket in the lid is nice - haven't used it to stuff the sack into itself, but have used to keep small items contained. Will definitely buy a few more in different sizes for traveling & backpacking.


Light with a hidden feature...


After looking for a compression sack that not only saved on weight, but offered the strength to bring a weekend kit of clothes down to size, I finally chose OR's Ultralight Compression Sack. I knew that my pack already had a rain cover, but didn't want to go the route of a dry compression sack due to weight issues. I had figured that the material that they used here, was also that of a previously purchased pack of Ultralight Ditty Sacks. I had tested them under the kitchen faucet to see how long they would repel water and I was surprised that after a minute of holding it under the water with a roll of toilet paper inside it was completely dry. If you are looking for a compression sack, that hides itself as being a dry sack under protected conditions, this is the one. I wouldn't use this as a true dry sack, but inside a pack, covered by a rain covered, this should offer more than sufficient water protection for my clothes and sleeping bag.



Ultralight Compression Sacks

5.0 5



What are the dimensions of the One size sack? Is this the 5L sack?


Hi Jim, this particular Ultralight Compression sack (item #242786) is a 5L sack. It's dimensions are 15 1/2" x 5 1/4" / 305 cu in. Thanks for contacting OR!