Esther, you sound like you have experience. I might be asking for help later on!!! The other day my Mom and I were in a furniture store and I was checking out how everything is covered. You would be amazed at how much is just pleated and stapled.
Jessica, here's a pic of the back. I tore apart the old material, made my pattern and checked out how they had made it. I sewed the ends, slipped it over the chair, hand sewed the seam across the top and stapled the bottom.....really easy. I love these roller chairs. As you get older, you appreciate anything with rollers on it.
I'm glad the dirt on the old covers didn't show up in the pictures. After twenty years and two little boys, they were dirty!!!
Karen