Outdoor equipment The foil blankets are necessary for your outdoor adventure,they are Waterproof and weatherproof. In emergency, the thermal blanket can provide considerable heat in extremely cold situations. The camping blanket can build shelters and protect you and your family from many elements. Package Contents 12 packs, the size of each foil blanket is 2.1*1.6m/6.88*5.25ft. High quality material The emergency blanket is made of PET film and surface coating, which is more tear-resistant and durable than Mylar, can keep the body heat very well and survive outdoors longer 90%. Survival GearThe survival emergency blankets is very suitable for camping, hiking, backpacking and survival in the cold outdoors. Wide Used The emergency blanket can be used as a reflective film to send a distress signal to rescuers. It can also be used as a rain poncho or can be used to cover the front windshield of a car to reduce heat absorption in the car.