The Expedition 0°F is NorthPeak's benchmark winter bag — an 850-fill-power down sleeping bag rated to legitimately keep you comfortable at zero degrees Fahrenheit. Designed for mountaineers, winter backpackers, and anyone who has ever been cold enough to regret cutting corners on their sleep system.
The 850FP RDS-certified down clusters are treated with NorthPeak's HydroGuard DWR treatment, maintaining 80% loft when damp — a meaningful advantage in shoulder-season and high-humidity environments where pure untreated down would fail. The differential box-wall construction eliminates cold spots at the baffles while keeping the fill evenly distributed throughout the bag.
A full-length draft tube backs the main zipper, and the anatomically shaped hood cinches to a 3-inch face opening in truly cold conditions. The trapezoidal foot box resists compression at the toes, preserving insulation where heat loss is highest.
- Fill: 850FP HydroGuard-treated RDS-certified down
- Shell: 20D ripstop nylon, DWR treated
- ISO Comfort: 5°F / -15°C | Lower Limit: 0°F / -18°C
- Weight (Regular): 2 lbs 14 oz
- Packed size (Regular): 8x6 in
