Come and see our amazing products. Children's school bag hiking backpack is made of nylon material, which can be effectively waterproof. Suitable for outdoor sports such as hiking, traveling, mountaineering, and cycling. Its dimensions are 9.5x3.5x15.8 inches. There are a lot of colors for you to choose from. If you need a customized logo, please contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.