How to Choose Sleeping Bags for Backpacking
Mountain Equipment Helium 400 Sleeping Bag - Women's
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On backpacking trips or cycle tours during cool spring and summer nights, the light and packable women's Mountain Equipment Helium 400 sleeping bag helps you sleep in blissful comfort.
Shop similar productsKey Details
Fill
90/10 700-fill-power duck down
Temperature Rating (F)
27 degrees (F)
- HELIUM™ 20 outer shell is very light and highly breathable
- 367g of 90/10 pure duck down has a minimum fill power of 700
- Alpine fit maximizes thermal efficiency
- Slanted box-wall baffles throughout reduce weight from the sleeping bag's structure
- Midlevel side seams afford great versatility whether the bag is laid on its front or back; they also improve even distribution of fill
- 5-baffle anatomically shaped hood provides high levels of down control, low weight and excellent insulation
- 4-baffle anatomically shaped and offset footbox restricts down migration while keeping weight and bulk to a minimum
- Full-length Gemini™ zip baffle and integrated collar with Lode Lock™ closure
- Comes with a waterproof roll-top stuff sack and storage cube
- Certified to the Down Codex® standard, which promotes transparency and animal welfare in the down supply chain
- Mountain Equipment is a member of Fair Wear Foundation, a European initiative working to improve workplace conditions in the garment and textile industry
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 Mountain Equipment 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 | 27 degrees (F) - EN |
| Tested Comfort | 37 degrees (F) - EN |
| Temperature Rating (F) | 27 degrees (F) |
| Temperature Rating (C) | -3 degrees (C) |
| Shell | 20-denier nylon |
| Insulation Type | Down |
| Fill | 90/10 700-fill-power duck down |
| Lining | 30-denier nylon |
| Sleeping Bag Shape | Mummy |
| Shoulder Girth (in.) | 60 inches |
| Hip Girth (in.) | 52 inches |
| Stuff Sack Size | 9 x 8 x 7 inches |
| Stuff Sack Volume | 8 liters |
| Compressed Volume | Unavailable |
| Gender | Women's |
