Free 2-Day Shipping on Orders Over $50

Detail Images

  • ALPS Mountaineering - Front
  • ALPS Mountaineering - Front
  • ALPS Mountaineering - Mummy Liner - Brushed Polyester/Charcoal
  • ALPS Mountaineering - Mummy Liner - Poly Cotton/Charcoal
  • ALPS Mountaineering - Front -
  • ALPS Mountaineering - Front -

Current Color

  • ALPS Mountaineering - Mummy Liner - Brushed Polyester/Charcoal
  • ALPS Mountaineering - Mummy Liner - Poly Cotton/Charcoal

ALPS Mountaineering Mummy Liner

24% Off
sale from $22.99 $32.95

Free 2-Day shipping on orders over $50. Learn More

Need advice picking the right gear for your next adventure?Talk to a Gearhead

Select style & size:

Select options
  • Select options
    • Brushed Polyester/Charcoal, One Size
      sale $22.99
    • Poly Cotton/Charcoal, One Size
      sale $24.99

    15 Reviews


    Mummy Liner

    If you use your sleeping bag heavily you know that it can be a pain to keep clean. Take advantage of the Alps Mountaineering Mummy Liner for an easy fix. Both the MicroFiber and Poly Cotton options are extremely comfortable and easy to clean. If you find yourself by the campfire and need a little extra warmth, the liner will come to your rescue.
    • Liner helps keep your sleeping bag a bit cleaner
    • Brushed polyester, cotton blend is soft and easy to clean
    • Standard stuff sack maintains compact, convenient storage
    • Item #ALM0082

    Tech Specs

    ⚠️ WARNING
    Cancer and Reproductive Harm -
    polyester cotton blend, microfiber
    Claimed Weight
    Recommended Use
    backpacking, camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Does the job

    • Familiarity: I've used it several times

    This liner does it's job well, does not get too funky, and is easy to wash. Just used it on a 7 night kayaking trip and it worked well and did add just a bit of warmth to my sleeping bag. At this sale price- it's a steal!

    Microfiber or Poly-cotton?!

    • Familiarity: I gave it as a gift but have feedback to share

    Hey wonderful people!
    The microfiber is going to absorb less moisture than the poly-cotton as well as dry faster! This is a great option for more humid areas. The Microfiber is also a bit softer to the touch.

    The Poly-cotton will be a bit nicer for those with sensitive skin, it will clean up a bit better and people typically prefer the feel of the poly-cotton over the microfiber, although the microfiber is said to have a softer feel.

    Whatever one you chose to go with I'm sure it will be a great option and you won't go without a liner again!

    Get one!

    • Familiarity: I've used it several times

    This was a last minute buy, but I'm so glad I got it, and after I used it, thought why didn't I know about this kinda thing earlier? If you're questing getting one, don't. Just get it, you won't regret it.

    High Hopes

    • Familiarity: I've used it several times

    Once again I was in need of a bag liner, and decided to try my luck with this one. In the past I've always used the cotton/silk blend, or silk versions. They always ended up tearing, after a relatively short life (and a high price tag). This one seems to be constructed in such a way that I hope for greater longevity, as the material is not see-through. It has a heavier weight (much like a bed sheet) that lent a nice comfort in the woods. So far it's seen two trips and 14 days of use, and I'm hopeful it will continue to perform just as well.

    Save $50 and get this liner

    • Familiarity: I've put it through the wringer

    I used this on a month long trip with a Sierra Designs Mobile Mummy 2 season bag to protect and extend the temp rating. It worked perfectly. The bag is rated for 40 comfortable and 30 minimum but I had a night down to 20 and many down to 30 and I think this liner really helped me sleep comfortably..

    A lot of the other liners sell for $70. Save your money and get this.

    It's easy to get in and doesn't confine or restrict movement. I'm 6' 2" 185 lbs and was perfectly comfortable and it covered me well.

    I also had nights with temps in the 50s and the liner was great by itself for sleeping.

    Great, thin liner!

      This is a super-soft thin liner. It's also rather long, which I like. The only downside is that it only has a velcro closure about 1/4 of the way down, so once you're "in", you're in.

      Keep me warm

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

      Awesome liner. Paired it with the alps 0degree crescent lake mummy bag. Keep the zipper down to my knees and was in the liner in the bag was able to use the bag like a open comforter and the liner keep me just warm enough with the breeze of cool air that came through

      Itchy and stiff

      • Familiarity: I've used it several times

      I got the microfiber version of this liner thinking it was a steal based off the reviews and the fact that I got it for 50% off. However, I was utterly disappointed with the fabric quality. I expected it feel like legit microfiber, however it felt more like an itchy hotel sheet. After washing it, the liner felt a little bit better, but not by much. Other than the quality of the fabric, the design itself is pretty sweet because it has a small side flap the makes it a breeze to get in and out of. I don't know if the polycotton version is any better, but maybe I just got a flawed liner. Regardless, I can't really recommend this liner.

      A sleeping bag's best friend

      • Familiarity: I've put it through the wringer

      I have been using the microfiber liner for about a year now and it is great. This is more of a 3 season liner so it won't add much extra warmth (if you need warmth for winter camping you should look at a fleece or heavier liner) but in the middle of summer you really aren't going to be too concerned with warmth. The biggest thing this liner is going to do is protect your sleeping bag from dirt and oils on you. It is a lot easier to was a liner than it is a sleeping bag (safer too).

      This liner is a lot easier to get into compared to a lot of liners on the market today. I tried a Sea to Summit reactor and only having the top open made it really hard to get in and out. This at least having a little opening down the side is easier when you have to pee at night. It packs up small and is light weight. What more could you ask for in a liner?

      Good liner

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

      I bought this mummy liner for my wife's sleeping bag. She tends to sleep a bit on the cold side and also didn't like the feeling of sleeping against the sleeping bag itself. This liner helped out with both, though it only does so much to add warmth. The fabric is much better to sleep against than the inside of a sleeping bag. Easy to pack and easy to clean, it's a winner.

      For the price, good.

      • Familiarity: I've put it through the wringer

      For the price I paid, ~$15, I would highly recommend this. I've used it quite a few times inside an aging 20 degree REI synthetic bag, and it's been great. It will keep you a few degrees warmer, but that's not the main point of this liner. I hate the inside of sleeping bags, they get my skin sweaty and I don't like the nylon. This solves that, it's like a sheet, maybe a bit thicker. It's easy to wash, and keeps the nasty smell out of your sleeping bag. I sleep warm, so many nights I'll unzip my sleeping bag, but wind will then blow in and is too cold on my skin. This is a perfect middle ground: sleep in this liner with the sleeping bag on top as a quilt. Very comfortable.

      No zipper, so it's kind of hard to get in and out of, but worth it.

      Unanswered Question

      ALPS Mountaineering Mummy Liner - What is the difference between the Microfiber and Poly/Cotton choices? Pros and Cons?


      rating on liner??? I have 20 degreebag ...

      rating on liner??? I have 20 degreebag would this get me down to 10

      That really depends on you and the environment you are in. If you are more of a warm sleeper this should do for you , but if you are more of a cold sleeper it will probably not get you that much. I have tried a few liners and found that the actual temp rating for me at least is not completely accurate. But backcountry has a good return policy so if you find it isn't what you want you can easily return it.

      How much does it weight? Does it comes...

      How much does it weight? Does it comes with a stuff sack/

      I would go with that ALPS website says. I have the one I got from REI and it is about 9.6 oz, but this is not the same liner from REI this is the poly/cotton version the one REI is selling is the microfiber version.

      Does this have a zipper and how far down...

      Does this have a zipper and how far down does it go? What would be the proposed degree rating if used alone for a light summer weight bag?