Basketball Bag: This backpack is specifically designed to carry a basketball and has the right size and structure for a basketball. Backpack: This bag adopts a shoulder strap design, which can effectively distribute the weight and reduce the burden during exercise. Training bag: This backpack has features suitable for various training situations and can accommodate and organize various sports equipment and props. Portable and multifunctional: The backpack is compact and lightweight in design, with multiple functional pockets and compartments for easy organization and storage of different items. Sports backpack: This backpack is specially designed for sports. It is breathable, wear-resistant, comfortable and suitable for use in various sports occasions.