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Sea To SummitAscent AcII Sleeping Bag: 15F Down

Sea To SummitAscent AcII Sleeping Bag: 15F Down

$419.00 - $439.00
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3 out of 5 stars
1 Review

Ascent AcII Sleeping Bag

The Sea to Summit Ascent ACII Sleeping Bag is feathery light and packs down to the size of about two water bottles, so it might be surprising to know how reliably protective when you're camping in wet environments. Its 15-degree rated 750-fill down insulation has a hydrophobic Ultra-Dry treatment to retain its lofty warmth when your tent has some condensation from the storm outside. Boasting true three-season versatility, this bag has a unique zipper system that's full-length on one side and half-side on the other to give you plenty of air on warmer nights. Draft tubes cover both zippers and the shaped hood for solid coverage when it's windy at night. It has an internal pockets and Sea to Summit included an Ultra-Sil compression bag and storage sacke for plenty of pocketing options.


  • Light, lofty, packable sleeping bag built for backpacking
  • Ultra-Dry Down insulation is hydrophobic for moisture-resistance
  • 15-degree rating with free-flow triple zipper for 3-season comfort
  • Vertical baffles prevent down from shifting around as you sleep
  • Draft tubes around the shaped hood and both zippers for coverage
  • Internal pocket stores phones and electronics
  • Pairs with Sea to Summit's Altitude, Journey, and Venture Bags
  • Includes Ultra-Sil compression bag and storage sack
  • Item #STS007D

Tech Specs

20D nylon
750+ fill RDS Ultra-Dry Down, Thermolite
Max User Height
[regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[regular] 61in, [long] 65in
Hip Circumference
[regular] 57in, [long] 61in
Foot Circumference
[regular] 48in, [long] 51in
Bag Length
Draft Tube
[internal] 1 phone/GPS/valuables
Fill Weight
[regular] 19.4oz, [long] 21.7oz
European Norm Comfort Rating
European Norm Lower Limit Rating
Storage Sack
Stuff Sack
Ultra-Sil compression bag
Stuff Size
[regular] 6.2L, [long] 7.8L
Claimed Weight
[regular] 2lb 6.8oz, [long] 2lb 10.2oz
Recommended Use
weekend camping
Manufacturer Warranty

Overall Rating

3 based on 1 ratings

Review Summary

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