Believe it or not, the vinyl cover will need to stretch all the way down to the seat base. In order to get it to stretch this far, you’ll need to set the seat and cover in the sun several times during your install. This is so it will warm up and soften a little, making it easier to work with. Be sure to secure the cover from the center out with hog rings and install only a few of the rings along the back edge at this time. This is because you might need to remove them later to align the stitching along the seat base and back.