When ultralight adventures require peak performance, choose the Kayu. An ultralight mummy bag, the NEMO Kayu 15 features premium 800-fill-power down and an aggressive, thermally efficient pattern.
Fill
800-fill-power duck down
Weight
2 lbs. 8 oz.
Compressed Volume
6.8 liters
Temperature Rating (F)
15 degrees (F)
- Careful tailoring of the hood and footbox plus a body-mapped core create an optimal fit with no excess weight or wasted space
- Premium 800-fill-power down is ultra-packable, hydrophobic and PFC-free
- Down is 100% Responsible Down Standard (RDS) certified
- Sculpted fit is designed for optimal thermal efficiency and packability
- Closely articulated hood with internal draft collar and draft tube
- Opposite-sided zippers allow men's (left-side zip) and women's (right-side zip) models to be zipped together to create a double sleeping bag
- Thermo Gill vents extend the temperature range of your sleeping bag on milder nights without letting cold drafts in
- Waterproof/breathable hood and footbox protect you from tent wall condensation, keeping you warm and dry through the night
- Top-shelf fabrics: 20-denier ripstop nylon shell, ultra-smooth 30-denier nylon taffeta lining and 40-denier OSMO ripstop nylon waterproof/breathable footbox
- Shell fabric has a durable water repellent (DWR)
- Protected by the NEMO lifetime warranty
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 NEMO 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 | 6 degrees (F) - ISO |
| Tested Comfort | 18 degrees (F) - ISO |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees (C) |
| Weight | 2 lbs. 8 oz. |
| Ultralight | Yes |
| Shell | 20-denier ripstop nylon with durable water repellent (DWR) |
| Zipper Location | Right |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 800-fill-power duck down |
| Fill Weight | 1 lb. 8 oz. |
| Lining | 30-denier nylon taffeta with DWR |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 66 inches |
| Shoulder Girth (in.) | 59 inches |
| Hip Girth (in.) | 52 inches |
| Stuff Sack Size | 8 x 12.5 inches |
| Stuff Sack Volume | 8 liters |
| Compressed Volume | 6.8 liters |
| Gender | Women's |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |