PROFESSIONAL FOR EMERGENCIES: Emergency sleeping bags perfect for emergency situations where warmth or protection from all-weather conditions is required. The special material reflects 90% of your bodys heat back to you, making it an essential survi LIGHTWEIGHT & COMPACT: This survival blanket is small enough to fit in your palm, weighs only 4.1 ounces. You can store this space blanket tarp almost anywhere, because it comes rolled up inside a durable waterproof stuff sack. DURABLE & REUSABLE: Your ultra-lightweight thermal blanket emergency is constructed of 26um extra-thick mylar material with a tear and puncture resistant coating so it stands up to extreme conditions.