DURABLE & HIGH QUALITY MATERIAL: The laptop backpack is made of good environment-friendly nylon fabric with new function of water-repellent, keeping your backpack neat and stylish in any case. External Dimensions: 16.2”x13.9”x7.1”. Item Weight: 1.45LBS. MULTI-FUNCTIONAL COMPARTMENT: Roomy compartments and pockets provide separated space for computer, iPad, power bank, A4 files, wallet, clothes and more your items. Zippered front pockets can hold some small but commonly used items. Two side pockets can hold your umbrella, tissue, etc. EXTERNAL USB DESIGN: Built-in USB PORT is convenient to charge your cell phone in a convenient and safe way (POWER BANK IS NOT INCLUDED).