Insulation: 90% Goose down & Thermopuff™ Shell: 10D nylon Lining: 10D nylon 90% down content goose down + Thermopuff™ spiral elastic fibers with excellent fluffiness The down is evenly distributed, with a quilted structure to prevent down from moving in the insulating layer Thermopuff™ insulation is filled in spots (shoulder, hip, feet) where the body and the ground closely contacted for ideal heat retention Lightweight, reducing the load during travel Easy to carry, high-quality down volume can be greatly compressed Water-resistant fabric, keeping the down dry Allows for free movement and bending of the legs, ergonomic arched foot well design Durable and easy to clean, advanced fiber technology is not easily affected by frequent use Size: 195*80 cm (M)/ 215*90 cm (L) Comfort Temperature: -4? to -10? Limit Temperature: -11? to -29? Extreme Temperature: -30? Weight: 1510 g (M)/ 1650g (L) Fill Power: 800FP Filling Weight: 800g (M) / 880g (L)