Come and Check Our Promo Solutions.This foldable casual backpack is made of 420D polyester fabric. It is abrasion-resistant, scratch-resistant and waterproof. Double-sided two-way zipper design, it can be easily folded, easy to carry. The breathable mesh shoulder strap is ergonomically designed to reduce back pressure. The side net pocket can hold water cups and umbrellas, which is very practical. You can customize the LOGO on the front for group tours, company outings, gift distribution, etc. Complies with prop 65. Pls check inventory and detailed info with us before placing your orders.