Cosmic DryDown 20 Sleeping Bag

Cosmic DryDown 20 Sleeping Bag

Regular price$159.95
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  • 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


Many sleeping bags are rated for temperature by an independent testing protocol. With both European Norm (EN) 13537 and International Organization for Standardization (ISO) 23537 testing, each bag gets a Comfort (or T-Comfort) rating and Lower (or T-Limit) rating. The Comfort/T-Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower/T-Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a hat, sleeping on a single 1 in. thick insulating pad. Many brands use the Comfort rating for women's bags and the Lower rating for men's and unisex bags. Everyone's body and sleep comfort differ, so EN and ISO ratings are simply a guideline to help you compare products.

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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