MATERIAL: This laptop backpack is made of environment-friendly nylon fabric which is durable and water-repellent; Dimensions: 16.9"x11.15"x7.5"; Weight: 1.82 LBS. Built-in USB PORT is convenient to charge your cell phone by the connected power bank.（POWER BANK IS NOT INCLUDED） Roomy space for your laptop and tablet. One pocket and mesh pocket provide perfect storage for your small items, such as credit cards and keys. Zippered compartment and side pockets all in simple and practical design, black leather pullers are the best choice of fashion. What’s more, the bag is lightweight and it is easy to carry.