Overview: 1. Ease of use，Easier than an emergency space blanket, Just pull out of the stuff sack, unroll and climb inside. the emergency sleeping bag can be used，as a sleeping bag liner to keep your body temperature. This bivy bag is small and lightweight, easy to carry and store. 2. Durability，Emergency bivvy survival sleeping bag kit is constructed of 26um extra-thick mylar material, waterproof and reusable. It can be folded up，and placed back inside the waterproof Nylon stuff sack for your next adventure. A must-have tent camping gear when Camping, Hiking, and Outdoor. 3. Keep Body Temperature，TWFRIC emergency bags are made from durable reflective polyester film that can increase your body temperature to 20 degrees，in cold and harsh weather conditions. It is a must for bad weather and outdoor adventures such as wind, heavy rain, and heavy snow. 4. Made for Emergencies，Multipurpose used as a survival emergency blanket, poncho, emergency shelter. And the bright orange color of the outer shell of this sleeping bag is essential to help rescuers find you. Specifications: Filling: PE Lining: PE Fabric: PE Structure: Envelope Applicable people: Adult Specification (length * width): 213*90 (cm) Package Content: 1 x Sleeping Bag