This crossbody sling backpack is made of high quality waterproof fabric. It is durable, scratch-resistant and waterproof. Ergonomic design to relieve back pressure. The shoulder bag comes with a well-padded back panel, which is comfortable and breathable to wear. It also protects your iPad, laptop or camera stored in the main compartment. The wide, thick shoulder strap with reinforced edges won't burden your shoulders or cut your neck.