1.Temporary sleeping bag
There is no accidental situation with a sleeping bag and temporary overnight. Cover (wear) the upper body with a jacket, jacket, and other clothing. Empty the backpack and put it in the lower body to keep warm.
2. Envelope sleeping bag
Large stretching space, free movement and relatively large storage volume. Envelope-type sleeping bag, as its name suggests, is shaped like an envelope, rectangular, with a seal on the side of the sleeping bag, which is a more traditional sleeping bag structure.
3.Semi-rectangular sleeping bag
The lower body is slightly narrower, and the upper body needs to be kept warm through the original insulation layer. It’s more spacious than a mummy and it’s lightweight and easy to store.