Children's backpacks are backpacks specifically designed for children to carry books and school supplies. Here are some common features of children's school bags: 1. Moderate size: The size of children's schoolbags is usually smaller than that of adult backpacks, suitable for children's height and body type, convenient for them to carry and use. 2. Light and comfortable: children's schoolbags are made of lightweight materials to reduce the burden on children, but also comfortable and breathable to avoid causing discomfort to children. 3. Durable and wear-resistant: children's schoolbags usually undergo the test of children's activities and use, so they need to have a certain durability and wear resistance, and can withstand the friction and impact brought by daily use and sports. 4. Multi-functional design: Children's schoolbags usually take into account the multiple needs of children, in addition to books, can also accommodate stationery, water cups, snacks and other items, convenient for children to use in school or travel. 5. Safety: Children's schoolbags usually take into account the safety of children, such as the design of reflective strips, waterproof materials, etc., to increase the safety of children at night or in rainy days. In short, children's school bags should be light, comfortable, durable, multi-functional and safe to meet the various needs of children in study and life.