How to Choose Sleeping Bags for Backpacking
Sierra Designs Zissou 3S Plus Sleeping Bag
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Designed to excel in a variety of overnight situations, the award-winning Zissou 3-season sleeping bag uses 700-fill DriDown® to keep you warm and cozy wherever you camp.
Shop similar productsKey Details
Fill
700-fill duck DriDown
Temperature Rating (F)
15 degrees (F)
- Very lightweight and compressible, 700-fill DriDown insulation stays drier longer, lofts higher and dries faster than untreated down in the presence of humidity, rain or sweat
- Snag-free and draft-free zipper track uses a bonded interfacing along draft tube and lining to eliminate snags
- Ergonomic hood and footbox are shaped for comfort, ease of movement and thermal efficiency
- Insulation is placed specifically to ensure warmth and comfort according to the European Norm Scientific Test Method, EN13537
- Draft collar prevents warm air from escaping and cold air from entering sleeping bag
- Draft tube eliminates cold spots along zipper
- Pad lock loops keep the sleeping bag centered on your sleeping pad with the use of accessory cords or bungees (not included)
- Drawcord at collar
- Includes stuff and storage sacks
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 Sierra Designs 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 | 15 degrees (F) - EN |
| Tested Comfort | 27 degrees (F) - EN |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees (C) |
| Shell | 30-denier ripstop polyester |
| Zipper Location | Left |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 700-fill duck DriDown |
| Lining | 30-denier ripstop polyester |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 8 x 16 inches |
| Stuff Sack Volume | 14.2 liters |
| Gender | Unisex |
