Sea To Summit Altitude AtII -10C Sleeping Bag - Women's


Colour: Caribbean

Delivery options:

Rocksolid guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


More spacious than a traditional mummy bag, for comfort in the alpine. A versatile 3-zipper design lets you open up the top for freedom of movement, customize your ventilation, or turn the whole sleeping bag into a quilt for warmth around camp.

  • Ultra-Dry Down fill uses a water-repellent finish that also provides antimicrobial protection
  • Additional Thermolite HL-1 synthetic insulation layer in the footbox
  • Free-Flow 3-zipper design: 1 full-length, two-way zipper on the right side, 1 foot zip, and 1 half zip on the left side
  • Vertical baffles around torso prevent cold spots
  • Oversized draft flap behind the zipper and an adjustable yoke
  • Large pocket fits a phone or GPS
  • Women's specific taper is wider in the hips and narrower in the shoulders
  • Includes lightweight silnylon compression sack and storage bag

Tech specs

Weight1.39kg (Long)
1.28kg (Regular)
Ideal for
  • Backpacking
ShapeMummy (Long)
Mummy (Regular)
  • 750+ fill-power water-repellent duck down
800g (Long)
720g (Regular)
  • Thermolite HL-1
  • Baffle
Face fabric
  • 20-denier nylon
  • 20-denier nylon
9.8L (Long)
8.1L (Regular)
Recommended Compression Sack12L
Shoulder girth152cm (Long)
148cm (Regular)
Hip girth152cm (Long)
148cm (Regular)
Foot girth122cm (Long)
118cm (Regular)
Additional feature(s)
  • Draft tube behind zipper
  • Home storage sack included
  • Stuff sack included
  • Regular fits to 5' 7" (170cm)
  • Long fits to 6' (183 cm)
Product sustainability
  • Certified Responsible Down
Made inChina

Reviews (18)

4.833333333333333 out of 5 stars with 18 reviews for Sea To Summit Altitude AtII -10C Sleeping Bag - Women's

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