There are as many different styles of tonneau cover as there are truck beds to cover. They meet several needs for truck owners. Having a cover on the bed of your truck keeps your cargo secure, dry and out of sight. A bed cover can even increase fuel economy, because it provides a smoother surface area for air to pass over while driving down the road. Increases in fuel economy vary by application, but can be as much as 10% or more. We have solid, folding and rolling tonneau covers from: Undercover, Roll-N-Lock,Extang and Jason Caps.