Men's backpack $ 40.63 Material: Microfiber synthetic leather Function: waterproof, breathable, anti-theft, wear-resistant, lighten, shock-proof Processing method: printing Hardness: Medium Style: Business Lining texture: polyester Types of accessories: backpack shoulder pads Strap root number: double root Lifting parts: soft handle Type of outer bag: inner patch bag Bag shapes: square vertical section Carrying system: physiological curve backplane