Men's Leisure Travel Large Capacity Three-piece Multifunctional USB Backpack

Product information:
Lining texture: Polyester
Color: black three-piece set [shoulder bag pencil box], gray three-piece set [shoulder bag pencil box], blue three-piece set [shoulder bag pencil box], red three-piece set [shoulder bag pencil case]
Applicable Gender: Male
Function: breathable, waterproof, wear-resistant, anti-theft, USB charging, anti-seismic, expansion, burden reduction, anti-cutting
Material: Oxford cloth
Bearing system: air pillow belt