With a 16-cubic-foot capacity, the RocketBox is the middle child of the Yakima line, which means it's big enough for a full family outing but isn't a sleeping walrus on top of your SUV. One big advantage is that the RocketBox lid opens slightly wider than that of the competition, making for easier loading and unloading. The two-lock system seems one lock too many. But the price won't put your wallet in a deep freeze. Choose from models that open on either the passenger-side or the driver-side. New this year: white boxes, joining the traditional black. Cost: $339-$359. Other models: SpaceBooster, 11 cubic feet, $239; SpaceCase, 20 cubic feet, $469-$489. 888-925-0703; www.yakima.com.