Come and see our amazing products. The multi-purpose riding chest bag is made of polyester and PVC. Polyhedral design with geometric texture, edges and lines are refined and tapered, making the overall shape more fluid. The one-piece shell structure can effectively increase the protection and resilience of the sling shoulder bag, and there will be no collision during daily use. The USB interface is set on the side of the backpack and is used to set the transmission mechanism between the power bank and the mobile phone. It can charge your device anytime, anywhere. It's probably the backpack you use the most. Unlike traditional backpacks, this polyhedral shoulder bag has multiple ways to carry it and is suitable for all occasions. It is also an ideal gift for birthdays or Christmas. We welcome custom logos, please contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.