ALTOS-S 0 Ultralight Mummy Bag


In stock

SKU: 1169


- Sustainable plant-based fill
- Lightweight
- Extra room in the footbox
- Anti-snag zippers
- Sturdy ripstop shell and soft liner
- Two sewn-in hanging loops for storage or to air dry
- Drawstring compression sack
- Lifetime Warranty


Step up your comfort. The ALTOS-S Ultralight Sleeping Bags are designed with you in mind. The water-resistant fill keeps you warm and comfortable. These bags provide more room for your shoulders, legs and feet.

Step up your features. The ALTOS-S Sleeping Bags are compact when carrying them, but so lofty when it’s time for bed. It’s a backpacker’s ultimate solution.

Step up your value. The ALTOS-S Sleeping Bags are not only warm, comfortable and easy to pack, they also have features you don’t usually see at this price, like a sustainable plant-based fill, vaulted footbox, zipper draft tubes and a 3-piece hood. Get the ALTOS-S Ultralight Sleeping Bag and step up your adventure.

Specs and Sizing

Primary Features

Size: 84" x 32" (at the shoulders) x 17" (at the foot)
Pack Weight: 3.5 lbs.
Temperature Rating: 0˚F


Shell: 20D Ripstop
Liner: 20D Polyester Taffeta
Fill: Dupont Sonora

Storage & Conveniences

Size (packed-not compressed): 14" x 8" x 8"
Storage: Oxford Stuff Sack with Drawstring Closure

Lifetime Warranty

TETON Sports has one of the best product guarantees in the business, made possible by our low defect rate and extra-mile customer service policy.

Customer Reviews

  • Rated 5.00 out of 5 based on 1 customer rating

    Based on 1 reviews

  • Cleveland Ohio

    Steve – Tri State Overland

    I was skeptical at first because of the light weight of this bag but I used this bag in 24F degree weather at night in the mountains of PA and I have to say I was pleased with its performance. I was very warm and it was super comfortable. I didn’t have to use a second bag or blanket which was nice. It’s cold at first because it’s not a flannel lining but if you get a micro fleece lining for this bag, it turns into an oven. I don’t plant to get out in much colder weather so I think I found a keeper.

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