Combining high-quality down, technical expedition-proven construction elements and a durable, water-resistant outer fabric, the Glacier 1000 is a highly versatile cold-weather bag for everything from winter camping to high-altitude trekking.

The 1000g of minimum 700-fill power DOWN CODEX-approved duck down offers exceptional warmth in cold environments, while the lightweight and water-resistant 30-denier DRILITE® LOFT™ outer fabric with recycled face copes with condensation and snow, ensuring a dry and comfortable night’s sleep whether in a tent or snowhole.

Trapezoid baffles across the top of the bag ensure optimal loft, reduce cold spots and prevent down migration. In contrast, at the foot of the bag, a six-baffle system focuses warmth around your feet—an essential in sub-zero conditions. In the hood, a five-baffle system ensures the down is optimally distributed for warmth and protection over long-term use.

Inside the bag, our time-tested EXL® elasticated stitching system minimises dead airspace, reduces drafts, and pulls the liner fabric away from the down, allowing it to loft effectively for maximal warmth. Meanwhile, a full-length Gemini™ entry zip baffle eliminates heat loss in this vulnerable area and is stiffened so it won’t catch in the zip. The low-profile magnetic Lode Lock™ closure and collar drawcords are effective and easy to use in the dark.

With a tapered Alpine fit to maximise thermal performance while minimising weight and a Good Night’s Sleep Temperature of -25oC (-13oF), the Glacier 1000 is ideally suited to self-supported missions in seriously cold conditions.