BRINCH&reg; Deluxe Lightweight Durable Waterproof Multifunctional Nylon Backpack For College Travel Business Compus Knapsack Laptop Backpack Pack for Up To 15.6 Inch Laptop / Notebook / MacBook / Chromebook / iPad (Black) Made of top quality waterproof and anti-scratch nylon that protects inside things from raining, splashing,scratching... Lightweight and super breathable back is more comforable and healthy for long time carry. 3 compartments design of large storage for different items,such as books,clothes etc. Two sides straps are uniquely designed to connected as belt clip. Size:43cm*33cm*23cm,Velcro pocket is ultra protective for up to 15.6 inch laptop.