Come and see our amazing products.This sleeping bag is made of 170T polyester, and the filler is hollow cotton, very warmly, portable, foldable and flexible. Separated zipper at the bottom can also make your feet often come out through the wind. Double zipper slider allow you to open the bottom of the sleeping bag at a warm night. You can even fully open the sleeping bag then use as a blanket. It is not easy to crack and fade, breathable and keeps warm, prevents dampness, and gives you a warm and comfortable night rest. Pls confirm further with us if any query about packing info, inventory status and time schedule.