Keep warm and Alive. Used as a survival emergency Bivy Sack, poncho, emergency shelter, wiil protect you from rain, wind, and snow. It can be used as a ground cover, sleeping bag liner when your in extreme environments. The emergency sleeping bag can be used as a sleeping bag liner to keep your body temperature. Orange is a great color for signaling. This thermal sleeping bag kept in a small bag, easy to carry and store. A must-have tent camping gear when camping, hiking,trail running, tactical gear and travel first aid kit.