【High-Quality Material】This school bag is made of water-resistant and durable polyester, which is breathable and has excellent heat dissipation. It has excellent water repellency, protecting the contents of the bag from sudden rain and dirt. It is highly abrasion-resistant, tear-resistant, and long-lasting. 【Large Capacity Storage】This backpack has a large capacity and can reasonably store items such as clothes, wallets, mobile phones, water bottles, umbrellas, books, and keys. It is a waterproof casual backpack, a kids' bag, and a high school student's backpack. A4-sized documents and tablet PCs can also be stored. It is very convenient. 【Multi-functional Use】This backpack has a simple design and functionality that can be used by people of all ages. It is suitable for commuting, going to school, traveling, mountain climbing, cycling, going out, and everyday life. It is an excellent bag to carry every day! 【Details】Size: Approximately 41cm (H) x 30cm (W) x 16cm (D) Weight: Approximately 600g