The size is uniform and the compatibility is good. Most sleeping bags can be used, such as four-corner sleeping bags, oval sleeping bags, envelope sleeping bags, etc
With waterproof and moisture‑proof characteristics, it can lock the heat, and can be used to collect dew during evacuation, thereby providing a water source
There is an emergency whistle on the storage bag, which is very practical and can be sounded in an emergency. It's very powerful and easy to hear
After sealing treatment and vinyl paste treatment, it can effectively prevent rainwater from intruding, and it can give you great help when you need first aid in outdoor camping
There are two small holes on each side of the bottom, which can effectively prevent the stuffiness and bring you a comfortable experience when first aid is needed.