Such a magical backpack that can change its size in a zigzag of a jiffy. Thanks to the top strap, you can make the Patton backpack smaller and larger as you like. And that's not the only trick. You will also appreciate the front pocket, where you can put your keys and have them right at hand.Interior compartment with separate space for mini nootebookSmall inner pocket for small items with zipper closureZipper fastening, can also be patentedAdjustable shoulder strapsExtremely strong and durable material