Polyester Imported ❤【5PCS ELECTRONIC HEATING PADS】 5PCS Heating Pads system will be compatible with any 5V/2A USB power supplies from cellphone Charger, Cellphone Power bank , Car jump starter, Car phone charger, and others. 5 heating pads are able to warm the shoulder, back, hip and feet areas.（ Battery NOT included) ❤【WARM AND WIDE TEMPERATURE RANGE】Extra heat from electronic heated pads can warm your body at chilly midnight when you are camping outdoor. If you feel too hot, just simply lower the temperature mode or turn it off. Don’t need to prepare an expensive down sleeping bag that is sometimes too hot for summer. ❤【EXTRA LARGE SIZE AND LIGHT WEIGHT】230X90CM (7.5X3FT) fit 6.8 feet man size. And it only weighs 3.6 pounds, the carrying bag easy to be packed and carried ❤【DURABLE SHELL AND SOFT FILLING】Water proof Polyester shell and Soft hollow fiber polyester filling keep your heat inside. ❤【MULTIPLE APPLICATION,100% SATISFACTION GUARANTY】Heated sleeping bag is good for sleeping at home, office, backyard, car, RV, mountain and beach camping.