What it is?
When ultralight adventures require peak performance, Kayu is the answer. An ultralight down mummy bag, Kayu features careful tailoring of the hood and footbox, plus a body-mapped core that creates an optimal fit with no excess weight or wasted space. Premium 800 FP down and aggressive, thermally efficient patterning make it a trusted companion on longer journeys where every ounce matters.
Key Benefits
- Sculpted fit is designed for optimal thermal efficiency and packability.
- Premium 800 FP down is ultra-packable, hydrophobic, PFC-free, and 100% Responsible Down Standard (RDS) certified.
- 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 include a 20D nylon ripstop with DWR on the shell, an ultra-smooth 30D nylon taffeta lining, and a 40D OSMO nylon ripstop waterproof/breathable footbox.
What else you need to know
Product Specs
Color | Fortress/Plasma |
Shape | Semi-rectangular |
Temperature rating | 30° F |
Fill type | Down |
Weight | 1.91 lb. |
Sleeping capacity | 1 |
Insulation | Down |
Gender | Women's |
Age Group | Adult |
Packed size | 11 x 6.5 in. |
Zipper location | Right |
Is ultralight | Ultralight |
Tested lower limit | 15° F |
Tested comfort | 33° F |
Shell | 20D Nylon Ripstop w/ DWR |
Shoulder girth | 59 in. |
Hip girth | 52 in. |
Fits up to | 66.14 in. |
Material | Nylon |
Size | Regular |