Sturdily constructed with a hardshell exterior made from pure polycarbonate, which is 15 times stronger than steel. Main compartment offers maximum packing space, with mesh wing tie-down straps to cinch down the load on one side and a mesh zipper for neat storage on the other. Four double wheels offer 360-rotation maneuverability. Ergonomic, comfort-grip handle; TSA-locking zipper. Includes protective storage cover.