How to Choose Sleeping Bags for Backpacking
Sea to Summit Flame Ultralight 35F Sleeping Bag - Women's
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Ready to move fast and light through the warm months? This women's Sea to Summit Flame Ultralight 35F sleeping bag keeps you cozy while serving up a light weight and small packed volume.
Shop similar productsKey Details
Fill
Ultra-dry down
Temperature Rating (F)
35 degrees (F)
- Ideal for summer through early fall use
- 850-fill-power down keeps you cozy
- 10-denier shell and 7-denier liner materials help deliver a light weight and compact packed size
- 1/3-length zipper
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 all Sea to Summit 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 | 25 degrees (F) - EN |
| Tested Comfort | 35 degrees (F) - EN |
| Temperature Rating (F) | 35 degrees (F) |
| Temperature Rating (C) | 2 degrees (C) |
| Ultralight | Yes |
| Shell | 10-denier nylon |
| Zipper Location | Right |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | Ultra-dry down |
| Lining | 7-denier nylon |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 5 x 10 inches |
| Stuff Sack Volume | 3.3 liters |
| Gender | Women's |
