Keep Warm: Emergency blankets can keep 90% of body heat, keep the body warm in a low temperature environment, prepare at home or at work, first aid kit in the office or on the go.Water & Windproof: High density insulation, they are reusable, waterproof, windproof, moisture resistant, can be used for cover and shade, sunscreen, poncho.Multi-purpose: For all those who want safety, solar survival blanket for versatile use (hiking, running, skiing, camping, car, explorer, emergency, first aid kit), 5 individual packages to meet your needs.Large & Light: The solar survival blanket is made of super PET material, each PET life film is individually folded and wrapped, handy and easy to pack, can be stored in the glove compartment of your car.