Monster music schoolbag trendy backpack European and American retro schoolbag third grade~ fourth grade bag

Computer size: 16 inches Scenario: School education Cortical characteristics: composite cowhide Function: Expansion Size: three-piece set (17-inch backpack + satchel + pencil case), 17-inch backpack, satchel, pencil case Material: Oxford cloth Carry system: Air cushion strap Popular elements: sewing line, printing