Features:1. When used in a low-temperature environment, it can keep its own heat not easily dissipated.2. Can be used as a picnic mat.3. The color of the first aid makes it easy for first responders to tell that it is actually one of the survival equipment in the wild. Adding a layer of first aid blanket in your sleeping bag can improve heat retention ability and is great for ensuring your sleeping temperature.4. Emergency cold-resistant sleeping bag, which can be used as a sleeping bag while resting to isolate the outside air and achieve warmth.5. Palm-sized sleeping bag, sleeping bag design, easy to collect and easy to carry.6. In the outdoor environment, it is suitable for field exploration, research, tourism and use in case of natural disasters. It is easy to carry, compact, beautiful and practical. Specification:Weight: 124gA:Material: Aluminum FoilStorage Bag Size: 12.5*6.5cmB:Size: 11*6cmMaterial: Waterproof MaterialPackage Content:Storage Bag*1