PlasticThe emergency sleeping bag is made of tin foil or tin film. The surface is coated with metal and the inner layer is PE plastic film. It can reflect the heat back to the body and keep warm against the coldEmergency sleeping bags are used for special situations, such as sleeping on the street after an earthquake, or outdoors in distress. Without any other warm clothing or sleeping bags, emergency sleeping bags can help maintain body temperature. This sleeping bag is not disposable. It needs to be carefully folded after each use and can be reusedSleeping bags can be worn on camping trips to protect them from wind and heat, and first-aid blankets can be used to reflect light and help rescuers find targets quickly.Can undertake to collect water source tent waterproof pad and other USES, under the hot sun can be reflective and sunscreenMaterial: PE film, color: orange, Length 200cm width 91cm