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  • Outdoor Research - UltraLight Compression Sack - Lemongrass
  • Outdoor Research - UltraLight Compression Sack - Alloy

Outdoor Research UltraLight Compression Sack

sale $19.59 - $41.95

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    • Lemongrass, 5L
      sale $19.59
    • Lemongrass, 8L
    • Lemongrass, 10L
      sale $26.95
    • Lemongrass, 15L
    • Lemongrass, 20L
      sale $34.95
    • Lemongrass, 35L
      sale $26.95
    • Alloy, 10L
      sale $26.95
    • Alloy, 20L
    • Alloy, 35L
      sale $30.96

    38 Reviews


    UltraLight Compression Sack

    Instead of strapping your sleeping bag to the outside of your pack where it's prone to get torn or unravel, pack it down to a manageable size with the Outdoor Research UltraLight Compression Sack and stash it in your backpack. The four-strap design cinches the internal items down, and the lightweight siliconized  fabric slides easily into your pack.

    • Four-strap design provides compression
    • Wide range of sizes accommodates everything from jackets to sleeping bags
    • Drawcord closure is quick and secure
    • Ultralight design adds minimal weight to your pack
    • Siliconized fabric is water resistant and easily slides into your pack
    • End cap pocket stows small items or can store the compression sack when it's not in use
    • Item #ODR1072

    Tech Specs

    30D siliconized nylon ripstop, 70D TPU
    [5L] 305 cu in, [8L] 488 cu in, [10L] 610 cu in, [15L] 915 cu in, [20L] 1220 cu in, [35L] 2136 cu in
    drawcord with cordlock
    [5L] 15.5 x 5.25 in, [8L] 17.6 x 6 in, [10L] 18.5 x 7 in, [15L] 21.5 x 8 in, [20L] 22.75 x 8.5 in, [35L] 25.5 x 11 in
    Claimed Weight
    [5L] 2 oz, [8L] 2.3 oz, [10L] 2.9 oz, [15L] 3.4 oz, [20L] 3.6 oz, [35L] 5 oz
    Recommended Use
    backpacking, camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Got rip but was quickly replaced by OB

    • Familiarity: I've used it once or twice and have initial impressions

    I bot this compressions sack to put my tent in, and it definitely did its job, until it had a rip at one of the sinch points, near a buckle. Granted, I may have sinched this down a little too much, but I also could have gotten a bad batch of fabric. Regardless, I was able to exchange it easily and quickly with the great customer on backcountry. Great compression sack for the weight.

    Follow up on my experience, I have used this compression sack on my tent now quite a few times, and it seems I may have just gotten a bad apple from the bunch because this one works great. If I had this experiencing the first time around I would have definitely put 5 stars, but I have to stick with 4 just due to my inconvenience.

    Excellent multi use stuff sack

    • Familiarity: I've used it several times

    I've got these in several sizes, and love them. I use them all the time, from backpacking, which is why I bought them, to vehicle travel. They're way better than what come with sleeping bags, make great pillows, dry quickly, and weigh nothing.

    useful for any travel trip

    • Familiarity: I've used it once or twice and have initial impressions

    Compression sacks are awesome for camping but it is also awesome when you are trying to fly economy airlines and all you can bring on is a small back pack. Wear your suit on the plane and put everything else soft in here and compress it down. I really like things with multiple uses! This one functions well and is easy to use.

    Pack it tight!

    • Familiarity: I've used it several times

    Great compression bag. Ultra light for getting the most out of your space. I like to keep my pack to the bare essentials, and even those need to be compressed down sometimes. This is a great lightweight option!

    Happy with this compression bag

      This is the second Outdoor Research item I've purchased. I have a lightweight down jacket that I'm very happy with as well. This compression bag is very lightweight and well made. It does exactly what you want your compression bag to do. You won't be disappointed.

      I'm in love

      • Familiarity: I've put it through the wringer

      Confession: I might be in love with Outdoor Research.

      I owned the 8L size for years to store my Thermarest Pro4. Did it's job to compress the sleeping pad down to the smallest possible size. Couple months ago the compression sack developed a tear on the seam during a bikepacking trip. OR had a replacement on my doorstep in less than a week, no questions asked. I am now purchasing a 15L for my Western Mountaineering bag.

      The build quality is absolutely fantastic while still being lightweight. The handle on the top/ bottom makes it easy to carry and pull out of your pack. Of the four straps, two have a buckle to make it easy to insert items into the compression sack without fully loosening the straps. Although I normally have my gear in dry bags, the material is water resistance which is perfect for keeping out the morning dew. Overall fantastic product that I would put in the buy it for life category.

      I'm in love

      Great Space Saver

      • Familiarity: I've put it through the wringer

      Hey this product is great. I purchased every size they make to maximize my backpacking space. I put anything from clothes to food in them and then compress it to the smallest size possible. The nicest thing about them is with clothes they provide an extra layer of waterproofing for items that can't get wet.

      15L is perfect for my 30* synthetic bag

      • Familiarity: I've used it several times
      • Fit: True to size
      • Height: 5'11"
      • Weight: 145lbs

      Perfect little compression sack for my 30 degree synthetic bag. Squeezes my bag down to a great size for shoving into a backpack or even saving a little extra space in the car. Material is thin but strong and very lightweight. Straps are easy to adjust and compresses with ease. I also like the little area on the bottle of the bag to stuff in the straps so you dont have a bunch of straps flapping around.

      If you have a down sleeping bag you could get away with a size down in this compression sack for sure but for all us synthetic sleepers, the 15L is the way to go. Overall, really pleased with this compression sack, once I found the right size for my bag ;)

      15L is perfect for my 30* synthetic bag

      Great purchase!

      • Familiarity: I've used it several times

      This was the first one I've used before, I have the th 10L for my la sal sleeping bag, it's a snug fit for that but once I get it in there I can compress it quite a bit. Solid purchase. Only downfall is mine smelled like fish when I got it haha

      Solid compression, a smidge too small

      • Familiarity: I returned this product before using it

      Worth mentioning that if you are shoving a sleeping bag into this, do your research or buy a couple sizes to find which size works best with your set up. The 10L was just a little too small for my 20* synthetic sleeping bag so I opted to go up a size even though I wanted to get the smallest compression possible.

      Hi Sarah, definitely on a synthetic bag, the 10L would be too small. But that is why we sell lots of other larger sizes as well. Definitely doing the research ahead of time is a great suggestion!

      OR Rep

      @Leta, which size do you recommend for the following sleeping bags?
      1. Mountain Hardwear Bozeman Torch Sleeping Bag: 0 Degree Synthetic - Women's / Reg
      2. Mountain Hardwear Hyperlamina Torch Sleeping Bag: 0 Degree Synthetic / Reg


      • Familiarity: I've put it through the wringer

      I got this for a down sleeping bag and it works great! It is an ultra light one so be careful how hard you pull on those straps because you will rip one end or the other though. This one is not meant to tighten as hard as a rock so don't try it! Other than that it compresses as it should and is a great color. Look no farther for a UL compression sack!

      8L for clothing

      • Familiarity: I've used it once or twice and have initial impressions

      I bought the 8L to use for clothes and it worked great! Highly recommend these for saving space and keeping clean clothes, clean!

      A quick favorite!

      • Familiarity: I've put it through the wringer

      I picked up this stuff sack for my Marmot Tungsten 2p tent in 10L size and it fits perfectly. It fits the footprint, tent and rain fly. I have all great things to say about it so far. With it completely full, it stuffs down better than any other stuff sack I've ever owned. It is super light and the fabric they use is impressive, it's so thin but still holds up to some serious compression and abuse.

      After my experience with this stuff sack, I picked up a few more from OR for organization and space in my pack. The weight and durability of this ripstop nylon is just incredible. Highly recommend this stuff sack!

      Nice Compression Sack

      • Familiarity: I've used it several times

      Nice sack that does what its meant to do. Have the 35L for compressing bedding in our van and we were surprised how much we were able to fit and squeeze down.

      Just Right

      • Familiarity: I've used it once or twice and have initial impressions

      The 15L fits my REI Joule 21 bag perfectly. Draw string and straps work great and seem like they will hold up to a lot of use.

      An Essential Part of Your Kit

        I have about a dozen of these OR sacks, in all different sizes and configurations and the common thread here is that they all perform just great. This model is able to store my sleeping bag, ground pad and bivy sack and can somehow manage to compress down to a size that fits inside my 50L backpack. Sturdy construction, tough materials, and cool colors make this model and others must own products.

        Light, with sweet features.

        • Familiarity: I've used it several times

        This sack has added features that other don't, that make it really smooth to use. The closure on the draw string is really smooth, and locks it's self in place for you. Also, there are to quick releases on the compression straps, that make opening the compressed bag very fast, and east.

        Also, it's a bit see through, so you can tell what's inside.

        This bag is light. The price you pay, though, is that it doesn't hold it's shape as well as other bags. It can easy get lumpy and harder to compression. It weight is a big issue, then it's worth the extra hassle. If ease and speed is more important, I would go with a regular compression sack.

        Light, with sweet features.

        can you suggest a size for: thermarest centauri 5 degree synthetic? with the provided stuff sack it is approx. 12" x 12" x 12". was considering the 15L. thanks ~

        Kyle, looking at the specs for the 15L comp sack above, I think it would work fine. If you have any concerns, go with the 20L... you can always compress it, and the weight difference is 0.2 oz.

        Thank you for the question!


        OR Rep

        What size would you suggest for an Alps Extreme 3 tent? Tent, fly, footprint.

        I have an Alps Red Creek 0 degree sleeping bag. Which compression sack size would be the most appropriate? Thanks in advance for your kind reply.

        Unanswered Question

        What size sack for Sierra Designs Backcountry 600 sleeping bag and also what size for REI 2+ half dome tent? I'm think 15L for sleeping bag and 8L for tent. Would 8L be sufficient for 3 days worth of clothing as well?

        Would 5,8, or 10L be best for my Marmot Lithium? Came with small marmot stuff sack, but not compression. Any ideas?

        The stuff sack that your Lithium came with should be 7.5x16 inches. I would recommend the 8L in this, since it will be the closest in size to the manufacturer sack. That way it will fit no problem and then you can compress it to a smaller size.

        I have the Northface Dolomite Double Sleeping bag. Regular Length. Would 15L work for that?


        At a stuffed size of 12x24in, none of these compression sacks will cut it for your needs. Something like the "ALPS Mountaineering Cyclone Compression Sack" in the XL size would be better for you, although still a tight fit.

        Unanswered Question

        What compression sack should i get i got...

        What compression sack should i get i got a Sierra Designs Mobile Mummy Reg size. 8'' x 15''

        I have a North face Aleutian 4s sleeping...

        I have a North face Aleutian 4s sleeping bag its 77" long what size should I get

        You are probably going to want to go with the 15L on that one seeing as the sleeping bags original stuff sack is about 8 x 23 inches. This will make stuffing it into the compression sack just as easy will allowing you to really get it compressed into a smaller size.

        What size should I get for a Western...

        What size should I get for a Western Mountaneering Summerlight L?

        Best Answer


        You can pull off a 5L or go up to the 8L and have plenty of room in either. Your Summerlight long stuffs at 6x12" (WM specs are XXS in the stuff sack they provide), so a little shy with the 5L in the width, but more than enough in the length. If you really need to compress your bag, that's how it is, but over time, it's tough on the down and shortens the lifespan, not to mention that it requires extra time to get the bag lofted back up before bed. My WM bags are probably the one thing I never ever compress unless I absolutely have to, and 6x12" is already a very doable packed volume to begin with. Hope this helps.