Men anti theft Backpack USB Notebook School Travel Bags 。?Internal dimensions: 16.54 x 5.91 x 12.4 inch (L x W x H); External dimensions: 18.31 x 5.91 x 12.99 inch (L x W x H). The inner computer compartment dimensions: are 17.32 x 11.02 inches (L x W). The front small pocket dimensions: are 9.84 x 7.48 inches (L x W). The front big pocket dimensions: are 10.83 x 11.02 inches (L x W). Compatible with MacBook, Notebook, Ultrabook, and Chromebook Computers 11-11.6 inch, 12 inches, 13-13.3 inch, 14 inches, 15-15.6 inch, and up to 16 inches; may not snugly fit all computers. ?2 front pockets organize pens, phones, and notebooks. 2 side pockets hold your umbrella and water bottle (up to the largest diameter of 2.7 inches). The laptop backpack provides a thick professional padded compartment foam section with a hook and loop fastener strap closure for your laptop, that fully protect your laptop against accidental impacts and scratches. Adjustable shoulder strap relieves the stress on the shoulder. ?Made from durable polyester. With a built-in USB charging port outside and a built-in charging cable inside, this backpack offers you a convenient way to charge your phone while walking. Please noted that this backpack doesn\'t power itself, usb charging port only offers easy access to the charging device.