Durable and Lightweight: Material is made up of 26um extra thick mylar material. Also has tear and puncture resistant coating to overcome extreme conditions, and it only weighs 4.1 ounces per sleeping bag..Keeping you warm through the night: This multipurpose sleeping bag has a reflective interior that helps to keep you warm by reflecting 90% of your body heat back to you. Stay warm and dry with the waterproof material which protects your sleeping bag from outside condensation. It even has a hood to protect your head and neck from cold weather or rain..Survival at its best: Applicable for all weather conditions. Your perfect handy companion to help you survive in any conditions that you might encounter in your adventures!.Affordable for all: Comes in 4 packs on a very affordable price for your family or friends of 4. Can also be stored on your survival kits or camping kits for emergency use. This reusable multipurpose sleeping bag will really save you money..Always on the GO: This is a small and compact camping sleeping bag that you can just put it inside your pocket if you are in a rush. Will also fit in a glove back, emergency kits and your camping kits.