• Women's specific tapered rectangular shape for perfect balance of space and adaptable warmth
  • Anatomically shaped footbox allows maximum down lofting, minimising heat loss from your feet with extra down overall and THERMOLITE® panels under the foot area for additional warmth
  • Vertical chest baffles prevent down migration and cold spots
  • Free-Flow half right side, full length two-way #5 YKK® left side and separate foot zips for freedom of movement, increased ventilation and dual-use as a quilt
  • Oversized zip draft tube with anti-snag materials prevents heat loss through the zip
  • Oversized neck draft tube with a dual adjustment system for even cinching and maximum warmth
  • Generously sized hood and dual cord adjustment for maximum warmth retention
  • Large internal security pocket
  • Includes Ultra-Sil™ Compression Bag for compact storage

Camping Resale Sea To Summit Sleeping Bag Altitude ATII Woman


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Sea To Summit's women's-specific Altitude ATII Sleeping Bag is an adaptable bag suited to a wide range of adventures. Has more space than traditional mummy-shaped bags yet still provides the thermal efficiency you need in above-the-tree-line conditions. Great for cold conditions with temperature ratings comfort -10°C and limit of -17°

Weighs in at 1280g and packed size of ø20 x 46cm. 

A Free-Flow triple-zip design gives you multiple ventilation options if you get too hot, lets you open the bag out into a quilt and allows you to fold the top third right down.

Other features include ULTRA-DRY Down™ 750+ loft duck down, more down overall, THERMOLITE® panels under the foot area and a side baffle that maintains a 60/40 fill ratio keeping more down on top for maximum insulation, vertical baffles in the chest area so the down stays put, a panelled footbox and 3D hood for maximum down lofting and drawcords in the hood and neck along with draft tubes behind the zips for maximum heat retention.

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  • Size: Regular
  • Recommended User Height: Reg up to 170 cm
  • Packed Dimensions: Reg ø20 x 46cm
  • Volume Compressed: 8.1 L (14 to 4.5 L sack volume)
  • Weight: Reg 1280g
  • Shell and lining: 100% Nylon (30D shell and 20D lining)
  • Fill Material: ULTRA-DRY Down™ 750+ Loft premium Goose Down (min. 90% down) RDS certified
  • Temp ratings: -10°C comfort EN13537 rating woman / -17°C Lower comfort EN13537 rating for men
  • Stuff sack: 100% Nylon