Designed for alpine climbing, winter backpacking, and cold-weather expeditions, this premium down sleeping bag delivers exceptional warmth-to-weight performance for demanding mountain conditions. Packed with 800 fill power European goose down and built with advanced L.O.F.T 3D™ baffle construction, it prevents down migration and eliminates cold spots to keep warmth evenly distributed throughout the bag. The lightweight tapered mummy design maximizes thermal efficiency while remaining compact and easy to pack for multi-day alpine adventures.

Engineered for technical mountain use, this winter sleeping bag combines durable 20D Pertex® Quantum fabric on the base and footbox with ultralight 10D Pertex® Quantum on the upper sections for increased loft and reduced pack size. Longitudinal chest baffles help retain heat around your core, while sidewall baffles improve comfort for side sleepers and reduce heat loss through seams. A down-filled neck collar, adjustable hood, insulated zip baffle, and anatomically shaped foot box work together to provide reliable warmth and comfort during freezing nights in the backcountry.

Hand-filled in Derbyshire, UK, this hydrophobic goose down sleeping bag is built for mountaineers, trekkers, and winter campers who need dependable performance in harsh environments. Rated with a lower comfort limit of 10°F / -12°C, it also includes anti-snag YKK® zippers, a lightweight compression dry bag for travel, and a water-resistant storage sack for long-term storage at home.