The Rightline Gear Cargo Saddlebag is a patented cargo carrier that rests on the back of your vehicle, WITH or WITHOUT a roof rack. The rear vehicle location allows for easy loading and access to your gear, and because it produces no aerodynamic drag, it saves $$$ at the gas pump. Perfect for SUVs, minivans, and crossovers with a distance of 40 between rear tail lights. Bottom pole frame provides structure and rigidity for bag. Purchase the Saddlebag Car Clips (sold separately) to attach to rear hatch doors on vehicles without a roof rack.