This is a sleeping bag made from polyethylene material. The inner surface is coated with aluminum and reflects 90% of your body heat. It has a better airtightness and better heat retention than a blanket. It has a supple texture and does not feel rough. The storage size is large enough to fit in one hand, so it won't be bulky in your backpack. *Please note that it is not moisture permeable. The storage case's draw cord can be used as a tinder cord to start a fire in an emergency, and a whistle is also included.
