This classic, expedition-ready down sleeping bag is tailored for demanding winter adventures. Its ergonomic mummy shape is designed to maximize thermal efficiency without compromising on comfort.

Advanced double H-shaped chambers system eliminates cold spots and ensures uniform insulation. While the differential cut allows the down to fully loft, providing optimal warmth and reducing compression during sleep.

3D-shaped hood paired with an independently adjustable 3D collar minimizes heat loss on cold nights. This combination offers a tailored fit and enhanced protection in extreme conditions.

Ergonomically shaped footbox with advanced insulation layout, offering superior warmth in one of the most cold-sensitive zones. Designed to maintain natural foot position while eliminating dead air pockets.

Durable, full-length 5 mm YKK® zipper with two self-locking sliders features an anti-snag strip for smooth operation. Twin down-filled draft tubes along the zip line ensure no heat escapes through the closure.

A convenient inner pocket keeps your small essentials, like a headlamp, battery pack, or phone, warm and within easy reach, even in freezing conditions.

Designed for warmth without bulk, this down sleeping bag features premium, high fill-power down that ensures excellent compressibility, fitting easily into your pack without taking up valuable space