How to Choose Sleeping Bags for Backpacking
Anacortes
Kelty Cosmic Ultra 20 Sleeping Bag - Women's
$194.73Compared to $259.95*Save 25%
For cold-weather camping, you want a sleeping bag that retains heat. This 3-season superstar from Kelty is a lightweight mummy with 800-fill-power DriDown. The spacious footbox provides wriggle room.
Key Details
Fill
800-fill-power DriDown
Weight
2 lbs. 14 oz.
Temperature Rating (F)
20 degrees (F)
- Kelty took their top-selling Cosmic bag and added this 800-fill-power DriDown version—with all the perks, too
- Innovative trapezoidal baffle construction for thermal efficiency
- Premium lightweight 800-fill-power DriDown
- Zippered internal stash pocket for your headlamp or cellphone
- Buttery-soft and durable 20-denier nylon shell fabric and liner with PFAS-free DWR
- Zipper draft tube keeps warm air in while anti-snag zipper makes it easy to get in and out
- Natural-fit, spacious footbox provides more room to wiggle your toes
- Comes with stuff sack for quick departures
- Environmentally friendly PFC-free water-resistant DriDown and C0 DWR coated fabrics
Imported.
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 BagsEach 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.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 13 degrees (F) - ISO |
| Tested Comfort | 25 degrees (F) - ISO |
| Temperature Rating (F) | 20 degrees (F) |
| Temperature Rating (C) | -7 degrees (C) |
| Weight | 2 lbs. 14 oz. |
| Shell | 20 denier nylon taffeta |
| Zipper Location | Right |
| Insulation Type | Down |
| Fill | 800-fill-power DriDown |
| Fill Weight | 1 lb. 9 oz. |
| Sleeping Capacity | 1-person |
| Lining | 20 denier nylon taffeta |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 68 inches |
| Shoulder Girth (in.) | 62 inches |
| Hip Girth (in.) | 58 inches |
| Stuff Sack Size | 8 x 13 inches |
| Gender | Women's |
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