New business computer backpack travel waterproof men's backpack usb rechargeable backpack

Material: Oxford cloth 

Lining texture: polyester

Accessories type: handle 

Strap root number: double root

Popular elements: car suture

Lifting parts: soft handle

Outer bag type: digging bag 

Bag shapes: square vertical section

Carrying system: curved shoulder strap

Model: 32*16*45cm

Function: waterproof, breathable, wear-resistant, anti-theft

Package internal structure: ID bag, mobile phone bag, zipper pocket, computer pocket