Using 600g white goose down, containing up to 90% down, keeps you warm. Suitable temperature is -515°C (32-59°F). Water-resistant 320T nylon for exterior and lining, protects against windy and wet weather. You can move your feet easily by opening the zipper at the bottom of the sleeping bag. L shaped zipper and adhesive fastener tape for easily getting in and getting out. Smooth to zipper and do no harm to your skin and clothes. Could be used as down quilt, sleeping bag or sleeping mat. The down sleeping bag can be wiped or dry cleaned. Come with a compression sack, easy to fold and storage. Good for warm weather and cold weather, suitable for camping, trip, hiking, adventure, climbing etc. Color: Black / Camouflage (optional). Material: 400T Nylon(for Black) / 320T Nylon(for Camouflage). Filling: 90% White Goose Down. Filling weight: 600 g / 1.3 lbs. Comfort Temperature: 0 15? Size: 220 130 cm / 86.6 51.2 in. Expanded size: 220 260 cm / 86.6 102.4 in. Compressed size: 19 19 25 cm / 7.5 7.5 9.8 in. 1700 g / 3.7 lb.