orota Vintage College Backpack School Bookbag Laptop Backpack with USB Charging -upgraded version zipperMany clients complain about the zipper from the old style will be broken essily,so we replace sa stronger zipper External USB with built-in charging cable shoulder strap:double sewing make it more durable Dimensions: 16.9H x 11L x 4.7W inch; Weight: 0.6kg ;Material:Polyester we are responsible for every order,please search :orota after sales service and leave a message to us before you leave a 1 start review