Kelty  Cosmic 20 Sleeping Bag - Men's

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Sleep snug and sound on subfreezing fall nights in the men's Kelty Cosmic 20 sleeping bag. It features soft-as-silk nylon taffeta fabric and a handy stash pocket for your headlamp.


  • 600-fill-power DriDown™ and durable water repellent (DWR) treatment are PFC-free
  • 20-denier nylon taffeta shell is soft yet durable
  • 50-denier polyester taffeta lining feels like satin sheets on your skin
  • Dual-sliding, locking 60 in. zipper features an antisnag design
  • Draft collar and comfortable hood help keep the cold out and the heat in
  • Stuff sack included


Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View the Kelty Cosmic Product LineView all Kelty Backpacking Sleeping Bags

Technical Specs

Item #147927
Best Use


Tested Lower Limit

19 degrees (F) - ISO

Tested Comfort

30 degrees (F) - ISO

Temperature Rating (F)

19 degrees (F)

Temperature Rating (C)

-7 degrees (C)


20-denier nylon taffeta

Zipper Location


Insulation Type


Water-Resistant Down



600-fill-power DriDown

Fill Weight



50-denier polyester taffeta

Sleeping Bag Shape


Compressed Volume




23 reviews with an average rating of 4.2 out of 5 stars

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