4 Season Sleeping Bags

Our 4-season sleeping bags deliver serious warmth and protection when conditions are at their harshest. Whether you're facing frigid nights in snow shelters, sleeping on an ice cap, in a winter hut in sub-zero temperatures, or are at altitude, these winter sleeping bags are built to perform when survival would be at risk without them.

Featuring high-fill power down or advanced synthetic insulation, each bag is crafted to trap heat and block draughts in extreme cold. Technical designs include features like insulated draft collars, adjustable hoods, full-length zip baffles and water-resistant shell fabrics to keep you warm and dry even in the most unforgiving environments.

Designed to withstand temperatures well below freezing, our 4-season sleeping bags are trusted by mountaineers, high-altitude expeditions and polar explorers who demand absolute reliability from their sleep systems. When warmth is non-negotiable and the stakes are high, these bags deliver peace of mind through the coldest nights.