-Pack of 4 HIGHLY EFFECTIVE HEAT REFLECTION - Constructed from advanced Mylar foil material, this emergency thermal blanket reflects up to 90% of body heat, effectively preventing hypothermia in cold environments and ensuring optimal warmth during critical situations. LIGHTWEIGHT AND COMPACT - Measuring 84” x 52” when unfolded and just 4.7” x 2.9” when folded. This heat reflective blanket is ultra-light (weighs only about 2 ounces) and easily fits into any backpack or emergency kit, making it perfect for travel and outdoor activities without adding unnecessary weight. VERSATILE USE - Designed for both cold and hot environments, this rescue blanket can reflect solar radiation to prevent overheating and provide shade, making it ideal for camping, hiking, and all kinds of survival scenarios. DURABLE AND WATERPROOF - The water-resistant material offers reliable protection against wind, rain, and snow, allowing you to use it to create makeshift shelters or cover your body, ensuring you stay dry, warm, and protected in challenging weather conditions. WIDELY USED IN EMERGENCY SITUATIONS - An essential tool for outdoor enthusiasts and first responders alike, this emergency blanket is perfect for hiking, camping, military training, disaster rescue operations, and as part of emergency first aid kits, equipping you for any unforeseen circumstance.