New diamond backpack men's trendy business commute large capacity fashion travel computer backpack trendy student schoolbag

Lining texture: Polyester Computer size: 15.6 Function: waterproof, wear-resistant, load-reducing Material: PU leather Carry system: Air cushion strap Popular Elements: Rhombus Style: Business commuting Capacity: 36-55L Size: uniform size Length: 42 cm Height: 32 cm Width: 13 cm