Bestop 76310-35 Black Diamond Supertop for Truck Bed Cover for 2004-2017 Chevy Silverado/GMC Sierra 1500 Crew Cab, 5.5' bed Uses same premium fabric as our Supertop for Jeep CJ and Wrangler with zip-out side panels; optional tinted window kits available Improved frame and hardware for easier installation and operation Uses Bestop's original BeltRail attachment system for secure mounting Supertop for Truck designed for both protection of cargo in the bed, but with easy collapsibility of convertible top Two-year limited warranty