DiamondBack HD - GMC Sierra 1500 thru 2018 Color:Rugged Black Designed exclusively for DiamondBack

Designed exclusively for DiamondBack

There is a gap in the gutter between the mid and tail panels on the drivers side that may cause the cover to leak in this area

Patented Taper Seal® technology

MOLLE for your DiamondBack HD*

It's 13" deep and keeps your bed organized by storing larger items near the cab of your Toyota

DiamondBack HD - GMC Sierra 1500 thru 2018 Color:Rugged Black Designed exclusively for DiamondBackThe Ultimate Heavy Duty Bed Cover. Theft proof, weatherproof, and able to haul 1600 LBS on top, the DiamondBack HD transforms your truck bed into the ultimate platform for adventure or to get things done while keeping your stuff safe and dry on the side of the road less traveled.