Great solid folding tonneau cover.
I have a 2015 Ford XL Supercab with a 6 1/2 foot bed, and I did a lot of research before choosing Extang. Several good solid tonneau covers needed rail installations, or had issues with the clamps. It came down to Extang or the new Leer Trilogy. I bought the Extang and it is very high quality, seals out water, was super easy to install, and saves gasoline. Very satisfied with my purchase.