CoveRex SR Tonneau cover by Armordillo. Our CoveRex SR Tonneau Cover is the bed cover you need for your rig, providing extra security and protection without comprising bed space. It can be roll up for full bed access in 5 minutes or less. The SR tonneau cover can also be secured and stored on the bulkhead of the bed, making it extremely convenient when the cover is not needed. It will protect your truck bed from UV rays and other elements. Our SR tonneau cover features a premium vinyl design to withstand UV rays and extreme temperatures without cracking or peeling. It will also help improve Aero Dynamic and Fuel Economy, up to 13%, as well as keeping your cargo clean, dry and secure whether you are on or off the road.