Feature: 1. The size is uniform and the compatibility is good. Most sleeping bags can be used, such as four-corner sleeping bags, oval sleeping bags, envelope sleeping bags, etc 2. With waterproof and moisture‑proof characteristics, it can lock the heat, and can be used to collect dew during evacuation, thereby providing a water source 3. There is an emergency whistle on the storage bag, which is very practical and can be sounded in an emergency. It's very powerful and easy to hear 4. After sealing treatment and vinyl paste treatment, it can effectively prevent rainwater from intruding, and it can give you great help when you need first aid in outdoor camping 5. There are two small holes on each side of the bottom, which can effectively prevent the stuffiness and bring you a comfortable experience when first aid is needed. Specification: Item Type: Emergency Sleeping Bag Material: PE Aluminum Film Applicable People: Adults Outdoor Emergency Situations: 1: Emergency Sleeping Bag Can Be Used As a Reflective Film to Send a Signal to Rescuers 2: Put an Emergency Blanket in the Emergency Sleeping Bag to Keep Warm 3: in Rainy Days, the Emergency Sleeping Bag Can Be Used As a Rain Poncho; It Can Be Opened As a Rain Shed 4: when the Vehicle Breaks Down in a Cold Area or at Night, an Emergency Sleeping Bag Can Be Used to Protect the Body 5: After an Accident, an Emergency Sleeping Bag Can Be Used to Cover the Body to Prevent a Quick Drop in Body Temperature. Parking Under Direct Sunlight in Summer, and the Front Windshield of the Car Can Be Covered with an Emergency Sleeping Bag to Reduce Heat Absorption in the Car. Package List: 1 x Emergency Sleeping Bag1 x Storage Bag