super large capacity schoolbag female high school student leisure backpack chic gangfeng yuansu korean travel backpack man

bag size: large pattern: letters lining texture: polyester processing method: soft surface type of outer bag: inner patch bag accessories: backpack shoulder pad material: oxford cloth popular element: letters number of shoulder belts: double lifting parts: soft handle function: breathable, wear-resistant, anti-theft, anti-seismic, load reduction bag internal structure: zipper bag, sandwich zipper bag, computer pocket backpack system: air cushion strap style: korean style capacity: below 20l