This cutting edge backpack is built to last! Never worry about your mobile devices running out of power. Completely redesigned with industrial-grade solar cells which charge quickly in direct sunlight. The solar charging is a breeze to set up. Simply plug your original USB charging cable into the USB port provided on the bag and stand in direct sunlight to begin charging! It can directly charge to your device, or store the charge in your power bank by connecting it to your power bank. It charges most brands of cell phones & tablets. The backpack is packed with features including a tablet pocket, 2 open pockets, and a mesh zip pocket inside the top zip compartment. The bottom zip compartment has pockets for business accessories and stationery. A computer sleeve inside the main compartment stores a 15.4 laptop