Durable Micro Weave poly-ballistic material. Hyperlight chassis with grid base for superior strength. Trolly has aluminum channel tubes for added strenght. Ergonomic comfort grip locking trolley handle. Low profile 360 degree multi-directional wheels mounted to grid base for stability. Antique brass metallic hardware and zippers. Convenient top side and botto, carry handles. Full London Fog signature lining, Interior has integrated show pockets an d a zippered mesh pocket on lid. Spinner uprights expand 2" for additonal packing capacity, Indutrial sef-repairing nylon #10 zippers. Dual skid runners protect fabric and trolly tubes.