-20°C Rated Down Insulated Sleeping Bag — 400T Ripstop Nylon Shell, Technical Construction

Engineered for subzero expeditions, this insulated sleeping bag delivers reliable thermal protection down to -20°C while maintaining a manageable pack size. A shell constructed from 400T 20D ripstop nylon provides essential wind and moisture resistance without adding unnecessary bulk.

Thermal Performance and Build Quality

Filled with 90% premium white duck down at a 600 fill power rating, the interior captures and retains body heat efficiently during prolonged exposure to freezing climates. The cut features reinforced foot insulation to minimize cold transfer through the extremities. Dual heavy-duty zippers enable lateral adjustment for ventilation or allow secure connection to a matching unit for shared shelter arrangements. Internal measurements total 210 centimeters in length, 80 centimeters across the torso, and 50 centimeters at the footbox to accommodate cold-weather layering comfortably.

Included Components: One down sleeping bag paired with a durable black compression stuff sack for space-efficient transport. Built for demanding applications including winter camping, alpine trekking, snow-covered mountaineering routes, remote bushcraft bases, bivouac operations, and cold-season outdoor events.

Insulation Load Reference

Select the appropriate fill weight based on anticipated nighttime temperatures. Consult the reference data below to match insulation volume with specific comfort thresholds and usage environments.