Transworld Roll-Away Deluxe Rolling Backpack - Green Polyester Imported Organizer with plenty of room for pens, calculators, iPhone, iPod, and all your school of traveling needs Back convertible panel to expose back straps and convert it to an actual backpack when desired Two front zipper secured compartments and One main zippered secured compartment Side mesh pocket to carry water or a drink and Zipper secure side accessory compartment Telescopic Handle for easy maneuverability when rolling with dual ball bearing wheels system