We had canvas dinghy chaps made when we were in Mexico to help protect the dinghy from UV exposure. It was custom made for the dinghy, so 9 years later when we got a new dinghy, it no longer fit. I tried modifying the chaps, but wound up replacing most of the Sunbrella canvas to get a better fit. It’s my biggest sewing project using a Sailrite machine and I got pretty good with it. I also re-stitched some of the other canvas covers for the boat, and replaced the vinyl in the butterfly hatch cover and the forward hatch cover since both were over 10 years old.