Patented 2-in-1 Removable Wheel and Handle System. Front zipper pocket for small miscellaneous items. Front organizer pocket for media devices cell phone business cards key holder and pens. Front compartment duals as an easy overnighter or an electronic device storage space. Middle compartment provides room for document needs and includes a detachable laptop briefcase. Back compartment padded to protect most laptops up to 17 in size. Tech-Lite Ballistic Nylon. Size with frame: 19.5'' x 10'' x 14.25''. Size without frame: 17'' x 7'' x 13''. Laptop interior dimensions: 16.5'' x 3'' x 12''. Hand strap drop length: 4.5''. Shoulder strap drop length: 14.5-21.25''. McKlein's limited lifetime warranty.