Keep your valuables accessible to only you by making this great-value bag your tech backpack of choice.31 ( w ) x 11 ( d ) x 45 ( h ) cmmelange 300D & PU capacity: 15 Litresthe concealed zipper prevents unwanted opening of your bagby connecting a power bank inside the bag to the charging port, you can then connect your phone to the external port via a charging cable, and charge on the movecomfortable, adjustable shoulder strapspadded back panelpadded laptop compartment will house a laptop of up to 15.6 inches in size