Made from lightweight 100 percent polycarbonate, a highly impact-resistant plastic. Features a unique top lid opening. Fits in most overheads of domestic airlines. Features a large front pocket with built-in padded sleeve for up to 15.6 inch laptop. Main compartment expands 2 inches. Silent running double spinner wheels. Telescoping handle has been designed to fit in the palm of the hand. Recessed TSA-accepted combination lock