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ALTOS -10F Ultralight Down Mummy Bag (Red)
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ALTOS -10F Ultralight Down Mummy Bag (Red)

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ALTOS -10F Ultralight Down Mummy Bag

The TETON Sports ALTOS -10F Ultralight Down Mummy Sleeping bag is finally here and ready for your most extreme adventures. Roomy for a mummy bag and filled with premium MTN-DRY hydrophobic white duck down so you'll stay warm in cold temperatures without sacrificing comfort. And if this down bag gets wet, its fill is treated with a special formulation that recovers quickly and dries out even faster than synthetic fills. It's highly compressible and lightweight but still has a thick loft to capture warm air and provide exceptional comfort. Its three-piece hood contours to your face and keeps ears and head tucked in and warm. A shoulder draft tube also allows you to cinch the sleeping bag around your shoulders to prevent cold air from seeping in on those really cold nights.


Product Specifications

  • Size: 84" x 32" (at the shoulders) x 17" (at the foot)

  • Size (packed-not compressed): 16.5" x 10" x 10"

  • Pack Weight: 4.2 lbs

  • Temp Rating: -10F

  • Shell: 20D Micro Ripstop

  • Liner: 20D Nylon

  • Filler: MTN DRY Hydrophobic Down

  • Zipper: Left Zip

  • Storage: Oxford Stuff Sack with Drawstring Closure

  • Color: Red


Product Features

  • Innovative Hydrophobic MTN-DRY fill keeps you warm even in wet and rainy conditions

  • Interior pocket zips to safely hold electronics or wallet on both sides of the sleeping bag

  • Full-length zipper draft tube keeps the warm air from escaping

  • Diamond ripstop shell is water-resistant and won't tear even if you snag or puncture it

  • Rated for very cold temperatures

  • 3-piece ultra-puff hood fits snugly around your head - no gaps means your ears stay warm too

  • Soft and cozy 20D nylon liner provides a comfortable sleeping layer without letting down through

1 Review

  • Stood up to -10 F

    Posted by splitsw on 22nd Jan 2018

    I finally got a chance to try this bag out in what the bag is designed for, winter camping. We were out south of Cody, Wyoming doing a ski trip and the temps were right around 0 to -10F with wind chill in late-January. We camped at 10,000' a little below treeline. With just my base layers on and the mummy hood up I was plenty cozy in my bag all night. I usually have the problem of "cold spots" (feet and back) but I couldn't find any with this bag. The foot section seems to be stuffed with extra fluff. Also, there was plenty of room to stuff all of my wet gear to dry out from the day - boot liners, ski socks, gloves, water bottle so it doesn't freeze, skins and my shell pants and jacket. The material stretches comfortably but doesn't leave any dead air space, which if you've ever winter camped is an unpleasant finding at 2am. Overall, it's a great bag that I would recommend to anyone who wants a pleasant night in a tent when the temps drop.

    For the record, I have used this bag for Spring skiing as well when it's around 25 degrees over night in the Tetons and it's great for that as well. Just strip some layers because it might get a little warm.

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