Multipurpose: Our insulation blankets are essential item for camping, off-road running, marathons, 48 hour/72 hour/30 day travel bags, earthquake-rescue kits, and travel kits. Maintaining heat: Perfect for situations that require warmth protection from adverses weather conditions. By maintaining up to 90.0% of the users body warm, it helps to prevent hypothermia and shock. Portable: No-matter where you-go, every blanket is easy to carry. You-can easily put it in your backpack and pocket. They can be reused, waterproof, wind-proof, and can also be used for floor coverings and shading. They can also be used in conjunction with shelters, sleepings bags, camping, other life-saving equipment to ensure additional safety. Easy to use: Each foil thermal blankets is individually folded, wrap, and sealed for easy storages and retrieval. They can be reused and provide your with multiple warmth effect when necessary.