Our emergency negotiation is made of polyester film material. Polyester film has insulation properties and can reflect/retain 90% of the body's heat. It is also weather proof and can keep you warm in any situation. 84x55in, five pack, each lifesaving blanket is individually folded, packaged, and sealed for easy carrying and storage.This is a camping emergency blanket, used for emergency survival. It is a reusable polyester film blanket that retains 90% of the user's body temperature through reflection to help prevent hypothermia and shock. Our blanket can also help block wind, rain, snow, and moisture, keeping you dry in damp, cold, and rainy environments. Car blankets are easy to carry, whether it's natural disasters, floods, or This blanket can be used for typhoons and other purposes.This blanket is made of bright reflective silver. If you encounter danger while camping in the wilderness, this blanket can allow rescue workers to see you from a distance. At night, when the surface of the blanket encounters light, the reflection is more obvious. This blanket is specially designed for survival in harsh environments and cold weather emergencies. It is an emergency blanket that you do not want to use, but for those who enjoy outdoor camping and mountaineering, you must carry it with you.This lifesaving blanket is a must-have for you to stay warm in the toughest places. Place it anywhere you may need, such as camping equipment, emergency preparation bags, insect proof bags, lifesaving bags, cars or off-road vehicles, outdoor adventures, hiking, backpacking trips, emergency signal blankets for sun reflectors, water collectors, etc., or any place that may lack warmth or shelter to save lives in an emergency.