【Warmth & Waterproof】: space blanket excel in providing excellent warmth and waterproof capabilities. Designed with insulation in mind,mylar emergency blanket can reflect over 90% of body heat, effectively preventing heat loss and ensuring your comfort and protection even in the harshest conditions. Additionally, emergency thermal blanket waterproof feature provides reliable moisture protection, keeping you dry and comfortable during outdoor activities, whether you're camping, hiking, or facing unpredictable weather.The combination of warmth and waterproofness in these products guarantees your comfort and peace of mind. 【Whistle & Carabiner】: space blankets survival come with a whistle and a carabiner, adding an extra layer of safety to your outdoor adventures. The whistle can attract attention and emit distress signals in emergency situations, while the carabiner allows you to secure the aluminum blanket to your backpack or gear. 【Versatile & Lightweight】: These camping emergency blankets are essential whether you're camping in the wilderness, embarking on an exploration journey, or in need of emergency protection in your vehicle. Their versatile design makes them suitable for various outdoor activities, providing reliable insulation and shelter when you need it most. They are designed to be compact and lightweight, easy to carry in a backpack or emergency kit. When folded, they are palm-sized and weigh only 2 ounces per blanket, maximizing functionality when needed. 【24-Hour Emergency Backup】: These emergency space blanket excel in their emergency backup functionality, providing long-lasting warmth and protection. The 24-hour emergency blanket will be your reliable companion. Stay prepared, ready to tackle emergency situations, and face various challenges with peace of mind. 【Extra Large & Extra Thick】: products are 23% larger than other emergency blanket for car, offering 2-pack or 4-pack of 83" x 63" emergency blanket. survival blanket Made of premium PE material, they ensure durability and longevity, and sol emergency blanket 26-micron ultra-thick structure provides tear resistance, allowing you to protect yourself in harsh conditions.