Hooded mummy design minimizes heat loss and keeps head warm for optimal comfort
Shoulder and zipper baffles prevent cold air infiltration, ensuring core warmth
Adjustable collar and hood pull strings trap body heat for added comfort below 32°F (0°C)
Internal collar pocket and four small pouches provide secure storage for essentials and heat warmers
Durable, water-resistant shell and RDS certified white duck down for ethical, long-lasting performance
Summarized by Shop
Product Description
The ZERO Mummy sleeping bag is built for cold-weather and high-altitude expeditions. It uses 850+ fill-power down, a durable water-resistant shell, hood design with pull-cords, and shoulder/zipper baffles to lock in warmth. Comfort rated around 14 °F and comfort limit 0 °F making it a serious mountaineering option.
Key
Temperature Rating
14°F (10°C) comfort, 0°F (-18°C) comfort limit
Fill Power
850 fill power (RDS certified)
Insulation
White duck down, 850 fill power
Weight
Short 2 lb 3 oz (1000 g), Regular 2 lb 10 oz (1200 g), Long 3 lb 14 oz (1400 g)
Dimensions
Short 73 x 31 in (18 x 31 cm), Regular 80 x 31 in (20 x 31 cm), Long 87 x 31 in (20 x 31 cm)