Lightweight and comfortable: Children's backpacks are made of lightweight materials to reduce the burden on children. The straps and back are usually made of breathable materials to provide a comfortable user experience. Durability: Children's backpacks need to withstand the test of daily use, so they are usually made of durable materials such as nylon, canvas, etc. Safety: Children's backpacks are usually equipped with reflective straps or other safety designs to increase their visibility at night or in low visibility environments. In addition, some backpacks are equipped with waterproof materials to protect books and school supplies from rainwater. Multi functional design: Children's backpacks typically have multiple pockets and compartments for organizing and storing items such as books and stationery. Some backpacks are also equipped with specialized pen bags, water cup bags, and other functions to meet the different needs of children. Personalized design: In order to cater to chil…