Updated for 2021, Kayu™ men’s and women’s ultralight down mummy bags are pinnacle equipment for ultralight adventures. Careful tailoring of the hood, footbox, and body-mapped core creates an optimal fit with no excess weight or wasted space. Premium 800FP down and aggressive, thermally efficient patterning, make for a trusted companion on longer journeys where every ounce matters.

Nemo's flagship Thermo Gills™ allow you to regulate temperature without letting in drafts, deeply extending the useable temperature range. The waterproof/breathable footbox and hood protect from tent wall condensation. Nemo's exceptionally packable 800 FP down is hydrophobic, PFC-free, and 100% Responsible Down Standard (RDS) certified. Top shelf fabrics include a 20D nylon ripstop with DWR on the shell, an ultra-smooth 30D nylon taffeta lining, and a 40D nylon ripstop OSMO™ waterproof/breathable footbox.

Features

• 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 Gills™ 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 nylon ripstop OSMO™ waterproof/breathable footbox