Sea To Summit Ascent AcII -10C Down Sleeping Bag - Unisex


Colour: Moss/Spruce

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, the Ascent -10C bag ensures 3-season warmth and comfort in the alpine. Thanks to the versatile 3-zipper design, you can open up the top for freedom of movement with both arms, customize your ventilation, or turn the whole sleeping bag into a quilt for warmth around a fire.

  • Ultra-Dry Down fill uses a water-repellent finish that also provides antimicrobial protection
  • 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 security pocket is big enough for a phone, GPS or other valuables
  • Includes lightweight silnylon compression sack and storage bag

Tech specs

Weight1.2kg (Long Left Zip)
1.1kg (Regular Left Zip)
Ideal for
  • Backpacking
  • 750+ fill-power water-repellent duck down
615g (Long Left Zip)
550g (Regular Left Zip)
  • Baffle
Face fabric
  • 20-denier nylon
  • 20-denier nylon
7.8L (Long Left Zip)
6.2L (Regular Left Zip)
Recommended Compression Sack12L (Long Left Zip)
12L (Regular Left Zip)
Shoulder girth165cm (Long Left Zip)
156cm (Regular Left Zip)
Hip girth156cm (Long Left Zip)
146cm (Regular Left Zip)
Foot girth129cm (Long Left Zip)
122cm (Regular Left Zip)
Additional feature(s)
  • Draft tube behind zipper
  • Home storage sack included
  • Stuff sack included
  • Regular fits to 6' 0" (183 cm)
  • Long fits to 6' 6" (198 cm)
Product sustainability
  • Certified Responsible Down
Made inChina

Reviews (41)

4.682926829268292 out of 5 stars with 41 reviews for Sea To Summit Ascent AcII -10C Down Sleeping Bag - Unisex

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