No ridges as pictured on the item page. Very good overall, but had to trim the driver's side due to a portion of plastic trim in the upper inner kick panel of the driver's seat/foot area. Otherwise, still pretty good. I can live without the lines/ridges, but I think it looked better that way. Still, I'm not requesting a replacement as I has to remove trim on the passenger side to install it well...and I'm not taking them out.