TETON Sports

ALTOS-S 0˚F Mummy

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$80.39 $119.99 In stock

Category: Amazon Exclusives - Sleeping Bags & Liners

Step up your comfort. The ALTOS-S 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 Sleeping Bag and step up your adventure.

  • 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


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    Standard Shipping · United States: $0.00

    Express Shipping · United States: $3.99

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    United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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    Customer Reviews (4.8 / 5 · 5 reviews)

    Claire K. ★★★★★

    The shoulder room is a game-changer—I’m a side sleeper and usually feel claustrophobic in mummies, but this one let me curl up without fighting the fabric. Even zipped all the way, my feet had space to wiggle, and the fill kept me toasty on a 20-degree night.

    Violet N. ★★★★★

    The water-resistant fill actually held up during a frosty night with dew everywhere, and I stayed perfectly warm. I'm a side sleeper with broad shoulders, so the extra room in that area made a huge difference for how I toss and turn.

    Leo ★★★★★

    The shoulder and foot room is a game changer—I tossed and turned all night without feeling cramped. The fill kept me cozy even when the tent got drafty, and the water-resistant shell handled the damp ground moisture without a fuss.

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