Kelty Cosmic Down 20 Sleeping Bag - Women's

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Lightweight and compressible with exceptional loft, the 3-season Kelty Cosmic 20 women's sleeping bag is filled with water-resistant 600-fill DriDown™ for all-weather reliability.


  • Ripstop polyester creates a smooth yet durable shell; polyester taffeta lining breathes for comfort and feels great against skin
  • 600-fill-power DriDown has a water-resistant finish that allows down insulation to resist moisture, dry fast and maintain loft
  • 60 in. dual-slider locking zipper with antisnag design and draft tube to hold in warmth
  • Thermal comfort hood has drawcords of differing widths at head and neck for easy identification and adjustment in the dark
  • Full draft collar drapes comfortably over neck and shoulders, sealing out drafts
  • Natural-fit footbox provides plenty of room so feet don't feel scrunched
  • Off-set construction provides maximum warmth without cold spots
  • 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 all Kelty Backpacking Sleeping Bags

Technical Specs

Best Use


Tested Lower Limit

13 degrees (F) - EN

Tested Comfort

25 degrees (F) - EN

Temperature Rating (F)

20 degrees (F)

Temperature Rating (C)

-7 degrees (C)


2 lbs. 13 oz.


50-denier ripstop polyester

Zipper Location


Insulation Type


Water-Resistant Down



600-fill DriDown

Fill Weight

21 ounces


50-denier polyester taffeta

Sleeping Bag Shape


Fits Up To (in.)

68 inches

Shoulder Girth (in.)

58 inches

Hip Girth (in.)

58 inches

Stuff Sack Size

8 x 13 inches

Stuff Sack Volume

10.7 liters

Compressed Volume

9.4 liters



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