Laptop backpack

• Material: Polyester
• Lining texture: nylon
• Size : 15 inches/17 inches
• Weight: 1kg-15inches/1.16kg-17inches
• Package internal structure: ID bag, mobile phone bag, laminated zipper bag, zipper pocket, computer pocket
• Function: Waterproof, breathable, wear-resistant, anti-theft, lightening, shockproof