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

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

Outdoor Research UltraLight Compression Sack

$26.95 - $41.95

Free 2-Day shipping on orders over $50*

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  • Select options
    • Agate, 10L
    • Agate, 15L
    • Agate, 20L
    • Agate, 5L
    • Alloy, 10L
    • Alloy, 15L
    • Alloy, 20L
    • Alloy, 35L
    • Alloy, 5L
    • Alloy, 8L
    • Lemongrass, 10L
    • Lemongrass, 15L
    • Lemongrass, 20L
    • Lemongrass, 35L
    • Lemongrass, 5L
    • Lemongrass, 8L

    23 Reviews


    Instead of strapping your sleeping bag to the outside of your pack like a rookie, 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
    [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
    drawcord with cordlock
    Compression Type
    [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?

    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.

      Awesome stuff sack

      • Familiarity: I've used it several times

      I have the 10L and it just fit's my 20 degree bag. It's super light weight (compared to my other stuff sacks) and looks like it's well built. I was a little worried that it was too thin, but so far it's worked out great!

      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.

      Durable and compression happy

      • Familiarity: I've put it through the wringer

      10 liter was perfect for my 20 degree down sleeping bag and a down jacket. No rips or tears and highly compressable. A good bag to get for backpacking for days on end like I just did. Very light. I would buy again if I needed too. It's a go to for me.

      Great, Gets the Job Done

      • Familiarity: I've used it several times

      Bought this for my WM Alpinlite Bag and the medium was perfect. Was able to squeeze in some other things as well like my down jacket I didnt wear that much but, wanted just in case.

      I like how you can un-clip two of the straps, makes getting the lid oriented easier as well as getting the bag out of it.

      If your curious what size you should get for your gear, let me know, just shoot me an email. I'd be happy to be your gear consultant!

      Bill Porreca

      Good for travel

        Got these compression sacks for my sister for her trip to Japan since she was only using a backpack to travel in. She used the sacks to compress her dirty laundry and heavy bulky items like her jeans and jacket. Said they work great, they are a bit heavy when compressed, but definitely saved space!

        Works just fine

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

        Well, I've only used it a couple of times now. The 15L fits my 12 degree down bag just fine and gets it down to a very small size. Overall I'm satisfied with it. I will probably update when I have used it further. The first time tightening the sack it made some scary noises near the seams I think it was, but maybe that's just a one time thing. Maybe I tightened it too much because I do have a lot of strength behind me, not sure. We will see if the seams hold up in the future. As of now the sack seems like it's pretty good quality for the price.

        Oh, I love thee!

        • Familiarity: I've used it several times

        So I held off on buying a compression sack for a long time because every time I would go to buy one, I would be frustrated with how expensive they were - do I REALLY need to spend that kind of money on a sack??

        The answer is yes. OMG does it make a world of difference!! I didn't buy the waterproof one simply because this one is water resistant, and I have a cover for my backpack if it does rain. But let me tell you...I put my down sleeping bag in here with a bunch of clothing and that thing compressed down to the size of a volleyball. Saves SO much room! I originally bought the 20L one, but then I saw a sale and decided to get a 15L one as well and now I've started my collection of compression sacks. I don't only use these for backpacking - I also use them just for traveling in general and you can fit so much more into a small suitcase. Truly amazing! Whoever said "hey, let's put straps on this thing so that you can tighten it down to nothing"....I thank you.

        And at night, it's great because I use this as my pillow, although it does slip around a bit. My last trip, it was fairly warm so I left my sleeping bag open a bit, and I put this inside my mummy head so it stayed put and was comfy all night long.

        Oh, I love thee!

        Awesome lightweight breathable sack

        • Familiarity: I've used it several times

        I bought an 8 L hoping to stuff a 0 Deg Marmot bag in it. It was wishful thinking. The bag is great though so I kept it to put clothes in for multi day backpacking trips. It has just the essentials so it stays lightweight but it's good quality. Doesn't feel like it's going to rip anytime soon.

        Bummer!! I called Backcountry and gave the bag specs to one of their experts who recommended the 8L after looking at the bag specs online and my mentioning that the bag has significant volume and I just didn't want to get the wrong size and go through the return/exchange hassle. We'll have to see after the UPS man brings the package. Thanks Spencer.

        No go my friend. It is like like trying to stuff 10 pounds of "you know what" into a 5 pound bag. Debating on returning the sack. I ended up getting a 31 liter Granite Gear Block Solid Compressor Bag for $19.95 from Left Lane Sports. I should be able to compress the sleeping bag and liner for sure and anything else I may see fit.

        great stuff!

        • Familiarity: I've used it several times

        this bag is great.... it cinches down well and seems to have good stitching all around. i use it to compress my optic 2.5 and it ends up no bigger than a bowling ball to fit great in my blackdiamond speed 55. i don't know whats not to love and honestly cant think of anything bad to say about it!

        this STUFFS great!!!

        • Familiarity: I've put it through the wringer

        See what I did there?

        What you're looking at below here ladies & gents are two compression sacks sitting next to a Nalgene for size referencing. On the left we have a 10L Alloy compression with a 40 degree military down sleeping bag stuffed in it. Stuck in the middle is a 5L Lemongrass compression sack with a 2-4 person sleeping tarp stuffed down along with my size L rain jacket...and I could still probably fit a few extra articles in each if I really wanted to. These have both worked sufficiently from day hikes to 3-week long backpacking trips and for me the 10L and 5L have been perfect sizes to own for a variety of uses.

        *READ THIS* If you are not familiar with these types of compression sacks and have never used them before, I HIGHLY recommend that you ask someone how to use them. Its not rocket science but If these types of compression sacks aren't stuffed down properly, I guarantee the clips will not last long at all. I am not aware if anyone has thought of using titanium or aluminum to make these clips yet but if not.. you saw it here first.

        Hope this information helps in your next compression sack selection.

        this STUFFS great!!!

        Great Compression Sack!!

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

        My wife and I are hiking the Camino de Santiago in the summer of 2014 and she will be managing 6 weeks with a 28L pack. I purchased the 5L compression sack to stuff her Northface Murcurial Bag Liner down a bit. Wasn't sure how small it would smash down to, but in the end it measured only 5.5 x 12 inches and fits perfect in the bottom of her small pack. I will review again after our trip when it has been packed and stuffed 45 times in 6 weeks.

        good stuffin sack

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

        Got this for my Marmot 15 degree Teton bag. I ordered the 15 liter size and it fits my sleeping bag well. Stuffs it down enough that my bag will easily fit in the bottom of my backpack. The stuff sack is very light and I was scared that it was going to rip! So far it's held up, but we'll see how long the material lasts for.

        Such a Lightweight & Versatile Sack!

        We have three of these compression sacks. I always carry my clothes in one & I just found out that my 2 person tent fits perfectly in the 8L sack & compresses to half its original size. For being so lightweight they hold up really well!

        Such a Lightweight & Versatile Sack!

        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?

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


        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

        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.