Rear Tonneau Cover protects back storage compartment - installation to factory belt rail system and rear tailgate bar, and a front attachment to the Cab rear window panel with a heavy-duty zipper that includes a Velcro flap cover, to fully seal the rear compartment. Features tight fit that eliminates flapping in the breeze. Product Features:Tight Fit Eliminates FlappingProtects Gear From The ElementsBoots Seal Around The Roll Bar With VelcroKeeps Gear Out Of Thieves Sight