Children's schoolbag & tutorial bag, shoulder messenger bag, waterproof, suitable for primary school boys and girls. Size: Two layers: height: 33cm width: 28cm thickness: 19cm Three layers: height: 33cm width: 28cm thickness: 19cm Material: high-quality nylon fabric+polyester lining Product Description: This boy/girl backpack is made of weatherproof polyester fiber, which can withstand the wear and tear of the little boy's lifestyle. It is also a sturdy, lightweight and easy-to-clean schoolbag. Easy to take small items, multiple compartments help to organize various school supplies. This is the most effective and interesting backpack for boys and girls. Large-capacity waterproof and lightweight, strong bearing capacity, leather hand-held, widened and thickened comfortable hand-held, wear-resistant. The front patch will automatically reflect the light so that your children can see it at night or in dark places. Two layers are single zipper bag+front pocket, A choice: two layers of dual-purpose models, single zipper+front pocket, which can be carried and shouldered; B: Three-layer dual-purpose model, double zipper+front pocket, which can be carried and shouldered; C: Three-layer, three-payment, double zipper+front pocket, portable, one-shoulder and two-shoulder.