The men's Kyan™ ultralight backpacking mummy has set a stake in the ground, defining the high-end premium synthetic sleeping bag. Our patent-pending FeatherCore™ construction, made with premium Primaloft® insulation, is a revolution in insulation, offering ultra-compressibility without sacrificing warmth. This completely new take on insulation construction packs down significantly smaller, providing all the benefits of synthetic insulation at the same pack size as 650FP down. Coupled with an aggressive shape and a full suite of features, these bags are the new ultralight go-to.
Patent-pending FeatherCore™ construction suppresses airflow to increase heat retention and increases compressibility for a packed size similar to down.
- Premium Primaloft™ Silver synthetic insulation offers the best blend of warmth retention, moisture resistance, and packed volume.
- A fabric set of 20D Nylon Ripstop and 30D Nylon Taffeta is ultra-plush for a supreme sleep experience.
- For greater sustainability, Primaloft™ Silver synthetic insulation contains 70% post-consumer recycled content.
Thermo Gills™ allows you to vent body heat without letting cold drafts in.
Full-length YKK zipper with snagless baffle construction and draft tube seals warm air in.
Tailored, thermally efficient patterning increases warmth and comfort, yet reduces weight.
- A generous apparel-like hood offers more heat retention.
- Protected by the NEMO Lifetime Warranty.