The men's Kayu™ ultralight down mummy bag, with premium packable 800FP down and aggressive, thermally-efficient patterning, is the new pinnacle bag for ultralight adventures. With careful attention to tailoring of each curve for efficiency and comfort, the contoured hood, shaped footbox, and body-mapped tapered core are designed for ideal fit with no excess or wasted space.
Premium 800 FP down is hydrophobic, PFC-free, and 100% Responsible Down Standard (RDS) certified for traceability and humane treatment throughout the supply chain. Other features include Thermo Gills™ provide temperature regulation, a waterproof/breathable footbox and hood to protect you head to toe from tent wall condensation, and a full-length YKK no-snag zipper.
Pairs with the women's Aya™.
| Capacity | 1 |
| Minimum Weight | 1 lb , 14 oz / 860 g |
| Packed Size | 14.5 x 8.0 in dia / 37 x 20 cm dia |
| Temp Rating | 15F / -9C |
| EN Lower Limit | 16 |
| ISO Lower Limit | 17F / -8C |
| Fill Type | Down |
| Fill Weight | 0 lb , 15 oz / 430 g |
| Fits Up To | 6' / 183 cm |
| Shoulder Girth | 62 in / 157 cm |
| Hip Girth | 57 in / 145 cm |
| Knee Girth | 46 in / 117 cm |
| Compressed Volume | 3.6 |
| Shell Fabric | 20D Nylon Ripstop w/ DWR |
| Footbox Fabric | 40D Nylon Ripstop OSMO™ w/ DWR |
| Lining Fabric | 30D Nylon Taffeta w/ DWR |
| Color | Graphite / Key Lime |
| Zipper Location | Left |
| Stuff Sack | Compression stuff sack, Mesh storage bag |
| Insulation | 800 FP Down |
| Capacity | 1 |
| Minimum Weight | 1 lb , 15 oz / 890 g |
| Packed Size | 14.5 x 8.0 in dia / 37 x 20 cm dia |
| Temp Rating | 15F / -9C |
| EN Lower Limit | 16 |
| ISO Lower Limit | 17F / -8C |
| Fill Type | Down |
| Fill Weight | 1 lb , 0 oz / 460 g |
| Fits Up To | 6'6" / 198 cm |
| Shoulder Girth | 67 in / 170 cm |
| Hip Girth | 59 in / 150 cm |
| Knee Girth | 50 in / 127 cm |
| Compressed Volume | 3.75 |
| Shell Fabric | 20D Nylon Ripstop w/ DWR |
| Footbox Fabric | 40D Nylon OSMO™ w/ DWR |
| Lining Fabric | 30D Nylon Taffeta w/ DWR |
| Color | Graphite / Key Lime |
| Zipper Location | Left |
| Stuff Sack | Compression stuff sack, Mesh storage bag |
| Insulation | 800 FP Down |
| Capacity | 1 |
| Minimum Weight | 1 lb , 10 oz / 740 g |
| Packed Size | 14.0 x 7.5 in dia / 36 x 19 cm dia |
| Temp Rating | 30F / -1C |
| EN Lower Limit | 31 |
| ISO Lower Limit | 31F / -1C |
| Fill Type | Down |
| Fill Weight | 0 lb , 11 oz / 310 g |
| Fits Up To | 6' / 183 cm |
| Shoulder Girth | 62 in / 157 cm |
| Hip Girth | 57 in / 145 cm |
| Knee Girth | 46 in / 117 cm |
| Compressed Volume | 2.99 |
| Shell Fabric | 20D Nylon Ripstop w/ DWR |
| Footbox Fabric | 40D Nylon Ripstop OSMO™ w/ DWR |
| Lining Fabric | 30D Nylon Taffeta w/ DWR |
| Color | Carbon / Blue Flame |
| Zipper Location | Left |
| Stuff Sack | Compression stuff sack, Mesh storage bag |
| Insulation | 800 FP Down |
| Capacity | 1 |
| Minimum Weight | 1 lb , 11 oz / 760 g |
| Packed Size | 14.0 x 7.5 in dia / 36 x 19 cm dia |
| Temp Rating | 30F / -1C |
| EN Lower Limit | 31 |
| ISO Lower Limit | 31F / -1C |
| Fill Type | Down |
| Fill Weight | 0 lb , 12 oz / 330 g |
| Fits Up To | 6'6" / 198 cm |
| Shoulder Girth | 67 in / 170 cm |
| Hip Girth | 59 in / 150 cm |
| Knee Girth | 50 in / 127 cm |
| Compressed Volume | 3.12 |
| Shell Fabric | 20D Nylon Ripstop w/ DWR |
| Footbox Fabric | 40D Nylon Ripstop OSMO™ w/ DWR |
| Lining Fabric | 30D Nylon Taffeta w/ DWR |
| Color | Carbon / Blue Flame |
| Zipper Location | Left |
| Stuff Sack | Compression stuff sack, Mesh storage bag |
| Insulation | 800 FP Down |
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Our warehouse is closed Oct 26th-31st for annual maintenance. All orders placed during this time will ship on Nov 1st.
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