I ordered a set of 4 of these in gray just to give a little bit of comfort to hardwood dining room chairs. They are thin, but they do the job. I'm not a fan of fat, tufted chair cushions, and these add a bit of softness. The price was reasonable, and they look good. I use them indoors, but they could be used on patio chairs, too.  The positioning of the ties is a little narrow, so rather than tying them to the outer edges of the chairbacks, I tied them to the rods of the chairback just one rod in on each side. (Just look at the fabric ties in the photo; they aren't on the edges, but slightly in from the edge.) They still worked fine for me.