New backpack men's simple and fashionable autumn winter waterproof large-capacity schoolbag female middle school students junior high school backpack

Lining texture: Polyester Material: Nylon Applicable gift occasion: travel commemoration Function: breathable, wear-resistant, anti-theft, anti-seismic, expansion, load reduction Hardness: soft Capacity: 20-35L Size: uniform size Length: 48 cm Height: 33 cm Width: 15 cm