Backcountry Mummy Bag 0°F

When the Temperature Drops, This Bag Doesn't.

The Backcountry Mummy Bag 0°F is built for cold-weather camping where a 3-season bag won't cut it. Rated to 0°F (-18°C) with 700-fill down and a full draft collar, it keeps you genuinely warm on the nights that matter most.

Key Features

• 0°F (-18°C) temperature rating — built for winter camping, cold basecamp nights, and high-altitude adventures
• 700-fill down insulation — serious warmth-to-weight ratio that compresses for backpacking
• Mummy cut — close-fitting shape minimizes dead air space and maximizes heat retention
• Draft collar — insulated neck baffle seals in body heat and blocks cold air from entering
• Draft tube along zipper — prevents heat loss along the zipper line on the coldest nights
• Snag-free zipper — smooth operation even with cold hands in the dark
• Stuff sack included — compresses for transport; store loosely at home to preserve loft

Who It's For

Winter campers, mountaineers, cold sleepers, and anyone heading into conditions where staying warm overnight is non-negotiable. When the forecast is serious, this is the bag you reach for.