DiamondBack Truck Covers introduces the new DiamondBack-X cover in cooperation with LINE-X Protective Coatings. This new DiamondBack cover is an enhanced version of the original patentedDiamondBack HD (Heavy Duty) and the DiamondBack SE (Standard Edition) covers. Coated with a remarkable patented coating from LINE-X Protective Coatings called LINE-X XTRA, the DiamondBack-X model cover offers the highest level of strength, durability and style.