Features:

Multi-purpose (you can carry it by hand or carry it on your shoulders). You can carry it horizontally, and the shoulder strap can be fixed by gluing, which will not affect your use. There is a rubber plate at the bottom of the bag for shaping. The left part of the bag (the lower part of the double back) has a space for shoes, and the handle part of the bag (the middle part of the double back) has a horizontal zipper. Zipper is a hanging net bag, which can hold some items independently. The right part of the bag (the top of the double back) has a hidden zipper (which can hold some clothes or sports gadgets), and the top of the hidden zipper also has a small zipper bag, which can put some small items in the card and wallet.