ALTOS-S Ultralight Sleeping Bag

We all want to save the planet. As we look for any small way we can contribute we recognize that outdoor gear often supports the view of nature, without sustaining the entire effort. So many manufacturing processes are high on waste and low on sustainability. This is the ALTOS-S ultralight sleeping bag, a true backcountry sleeping bag with a positive environmental impact. It’s made of renewable materials with a cleaner and more efficient manufacturing process that all adds up to a lower cost to you. It’s a win-win-win for the world.

Warm Mummy Bag Made from Renewable Materials

The ALTOS-S Ultralight Sleeping bag is filled with down-like synthetic Spectrum S™ fill that is warmer than traditional fill so it keeps you warm in cold temperatures without sacrificing comfort. You’ll sleep even more soundly knowing we made it from renewable materials. It’s extremely packable and lightweight but still provides a thick and warm loft to capture warm air and provide exceptional comfort. The 20D shell and liner are both ultra-lightweight and comfortable. The three-piece hood pulls in to contour to your face and keeps ears and head tucked in and warm.

The ALTOS-S unzips from the top and bottom with both interior and exterior zipper pulls making it easy to get in and out. The zippers are fully taped with an anti-snag design and a full-length zipper draft tube. The hang loops on the exterior of the sleeping bag allow for easy hanging storage when not in use. The included compression sack makes packing quick and easy.

ALTOS Ultralight Down Sleeping Bag

When you’ve been out hiking, through rain or shine, nothing’s more inviting at the end of the day than dry gear. The ALTOS Ultralight Down Mummy Bag was made for adventuring in all types of weather. With Dual-stage Mountain-Dry Down that was designed to keep you comfortable so you can get up the next morning, hit the trail, and conquer your journey.

Extremely Lightweight Down Bag for Cold Weather Backpacking

The ALTOS Ultralight Down Sleeping bag is ready for the most extreme adventures. Roomy for a mummy bag and filled with premium MTN-DRY™ hydrophobic white duck down fill so you’ll stay warm in cold temperatures without sacrificing comfort.

Extremely packable and lightweight, yet it still provides a thick and warm loft to capture warm air and provide exceptional comfort. The TETON Sports® ALTOS has a three-piece hood that contours your face and keeps ears and head tucked in and warm. A shoulder baffle also allows you to cinch the sleeping bag around your shoulders to prevent drafts on those really cold nights.

The ALTOS ultralight down sleeping bag unzips from the top and bottom with both interior and exterior zipper pulls making it easy to get in and out. The zippers are fully taped with an anti-snag design and a full-length zipper baffle. The shell is made from a sleek 20D Micro Ripstop and the liner is a cozy 20D nylon which are both durable yet lightweight. The hang loops on the exterior of the sleeping bag allow for easy hanging storage when not in use. The included heavy-duty compression sack makes packing quick and easy.

TETON Sports ALTOS-S & ALTOS Down Ultralight Mummy Bag Features

ALTOS-S Features

  • Spectrum S™ Fill Made from Renewable Materials Innovative Spectrum S™ insulation keeps you warm and helps the environment.
  • Roomier Size Longer and wider 84” x 32” at widest point, 17” at narrowest point; fits larger frames, yet it can be compressed down to maintain pack space.
  • Lightweight and Ultra Soft Liner Soft and cozy 20D liner provides a comfortable sleeping layer.
  • 3-Piece Ultra-Puff Hood Ultra-puff hood built with extra loft for added comfort—drawstring pulls in to contour face perfectly.
  • Shoulder and Zipper Draft Tubes Full-width shoulder and full-length zipper draft tubes keep warm air in and cold air out.
  • Anti-Snag Zippers Taped, anti-snag zippers are easy to close from inside or outside of bag.
  • Light and Packable Shell Lightweight and packable, yet durable 20D micro ripstop nylon shell.
  • Safety Hook and Loop Hook and loop tab closure folds in on itself when not in use to protect your skin.
  • Interior Pocket Interior zip pocket keeps your flashlight, wallet, keys or other important items in reach.
  • Hanging Loops Three sewn-in hanging loops for storage or to air dry.
  • Attractive Coloring TETON orange color shell with a soft orange liner.
  • Compression Sack Includes Oxford compression sack with a drawstring and barrel-lock.
  • Lightweight The TETON Sports ® ALTOS-S +20°F and 0°F is packable for any backcountry adventure

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ALTOS Down Features

  • MTN-DRY™ Hydrophobic Down Fill Innovative hydrophobic MTN-DRY™ down keeps you warm even in wet and rainy conditions.
  • Roomier Size Longer and wider 84” x 32” at widest point, 17” at narrowest point; fits larger frames, yet it can be compressed down to maintain pack space.
  • Lightweight and Ultra Soft Liner Soft and cozy 20D nylon liner provides a comfortable sleeping layer.
  • 3-Piece Ultra-Puff Hood Ultra-Puff hood built with extra loft for added comfort, a drawstring hood with shoulder baffle that contours face perfectly.
  • Draft Tube Full-length zipper draft tube reduces air loss.
  • Shoulder Baffle Shoulder baffle keeps warm air in and cold air out
  • Anti-Snag Zippers Taped, anti-snag zippers are easy to close from inside or outside of bag.
  • Light and Packable Shell Lightweight and packable, yet durable 20D Micro Ripstop shell.
  • Safety Velcro Velcro tab closure folds in on itself when not in use to protect your skin.
  • Interior Pocket Interior zip pocket keeps your flashlight, wallet, keys or other important items in reach.
  • Hanging Loops Three sewn-in hanging loops for storage or to air dry.
  • Attractive Coloring Fire Red, Midnight Black with Red Accent or Mountain Lake Blue color shell with a soft grey liner.
  • Compression Sack Includes Oxford compression sack with a drawstring and barrel-lock.
  • Light Weight TETON Sports® ALTOS -10°F weighs 4.2 lbs.,  0°F weighs 3.45 lbs., and +20°F weighs 2.5 lbs.

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TETON Sports ALTOS-S & ALTOS Down Ultralight Mummy Bag Specifications

ALTOS-S Specifications

  •  Dimensions:
    • 0°F: 84" x 32" at widest point, 17” at narrowest point (213cm x 81cm x 43cm)
    • +20°F: 84" x 32" at widest point, 17” at narrowest point (213cm x 81cm x 43cm)
  • Temperature Rating:
    • 0° Fahrenheit
    • +20° Fahrenheit
  • Pack Weight:
    • 0°F: 3.5 lbs (1.6 kg)
    • +20°F: 2.8 lbs (1.3 kg)
  • Pack Size:
    • 0°F: 14" x 8" x 8" (36cm x 20cm x 20cm)
    • +20°F: 12" x 8.75" x 8.75" (30cm x 22cm x 22cm)
  • Shell Color:
    • 0°F: TETON Orange
    • +20°F: Burnt Orange
  • Fill: Spectrum S™
  • Shell: 20D/400T Mini R/S Nylon
  • Lining: 20D/380T Nylon Taffeta
  • Compression Sack: Oxford Stuff Sack with Drawstring Closure
  • Zipper: Left Hand

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ALTOS Down Specifications

  • Dimensions:
    • -10°F: 84" x 32" at widest point, 17” at narrowest point
    • 0°F: 84" x 32" at widest point, 17” at narrowest point
    • +20°F: 84" x 32" at widest point, 17” at narrowest point
  • Temperature Rating:
    • -10° Fahrenheit
    • 0° Fahrenheit
    • +20° Fahrenheit
  • Pack Weight:
    • -10°F: 4.2 lbs
    • 0°F: 3.45 lbs
    • +20°F: 2.5 lbs
  • Pack Size:
    • -10°F: 16" x 10" x 10"
    • 0°F: 15.5" x 9" x 9"
    • +20°F: 14" x 8" x 8"-
  • Color:
    • -10°F: Fire Red
    • 0°F: Midnight Black with Red Accent
    • +20°F: Mountain Lake Blue
  • Fill: MTN-DRY™, premium hydrophobic down
  • Shell: 20D / 380T Mini R/S
  • Lining: 20D Nylon
  • Compression Sack: Oxford Stuff Sack with Drawstring Closure
  • Zipper: Left Hand

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