Thanks to the drag-minimizing aerodynamic shape, the cargo box won't dramatically boost your gas consumption on long road trips. Other details include an extra-stiff lid that vibrates less than other cargo boxes and is easier to open and shut with one hand; an integrated track system for such accessories as a cargo net or base pad; a new lid shape that's easier to grip; an improved security latch that keeps your stuff safe; and a sleek automotive pro-series finish. Also equipped with SKS locks, the SkyBox Pro 18 measures 92 by 16 by 36 inches (W x H x D).