Made from soft, warm and comfortable goose down, keep your feet nice and warm in cold weathers. A must have for wooden floor, carpet and camping, backpacking, etc.  Features: Quality 210D nylon fabric, durable, water resistant, and wind proof.  Super soft goose down lining, warm, comfortable and lightweight. Provide superior thermal retention for both legs and feet. 110 g / 3.9 oz only,  long wear without fatigue. Elastic cuff concentrates heat effectively. Can be used as indoor slippers, outdoor socks for sleeping bag, tent. Specifications: Material: 210D Nylon + Goose down Color: Black Sole Length: 28 cm / 11.0 in Packing Size: 21 * 9 * 9 cm / 8.3 * 3.5 * 3.5 in Packing Weight: 110 g / 3.9 oz Package List:  1 * Pair of Booties