Applicable gender: neutral / both sexes Cover opening mode: zipper Lining texture: Polyester Size: 22cm wide, 12cm thick and 31cm high Color: red, green, sky blue Function: air permeability, wear resistance, shock resistance, load reduction Style: cute cartoon Bag internal structure: Certificate bag Number of shoulder straps: Double Capacity: 20-35l Cute pattern: cute cartoon design, vivid and colorful Two way zipper: two way opening and closing, easy to open and close, smooth and durable Side pocket: there are side pockets on both sides of the bag, which can put water cups, umbrellas and other items, so it is convenient to take Jujube reinforcement: the triangle Sewing Thread Jujube reinforcement design makes the bag strong bearing capacity and durable Honeycomb breathable shoulder strap: the shoulder strap adopts 3D honeycomb breathable sponge design, which is comfortable and breathable, and refuses to be muggy