Item Type: Electric Heating Sleeping Bag Material: Cotton, Cloth, Down Gross Weight: 1894g / 66.8oz Applicable Temperature: -15~20 Power Required: USB plug to use Expand Size: Approx.210 x 75cm / 82.7 x 29.5in Package List 1 x Electric Heating Sleeping Bag 1 x Storage Bag 1Skin Friendly and Soft: Down cotton does not puncture and is skin friendly and soft, it can withstand everything from drizzle to heavy rain and dirt to cold wind. 2Breathable and Dry: Compared with synthetic fiber sleeping bags, down sleeping bags are more breathable and dry, lighter and warmer. 3Temperature Controlled: You can free your feet for excellent temperature control, and it has an internal storage pocket for wallet or keys. 4Prevent Down Stacking: Each rectangular down filling grid firmly locks in heat, effectively preventing down stacking, stabilizing down, and giving you a warm and comfortable sleep. 5Multiple Uses: When its zipper is fully opened, it turns into a down blanket or quilt, and since the bottom and side zippers of the sleeping bag can be opened independently, you can freely adjust the comfortable temperature of the sleeping bag.