I had my boat cushions redone 7 years ago. Cost me $580 for 2 16"x16" seats (bottom only) and one typical swing back cooler/bench with seat and back. Anyway they have spent about 75% of the last 7 years under covers. I clean them when needed (with vinyl cleaner) and put the UV protection lotion on them once yearly. They really do not get much use (full time job & 3 toddlers). The vinyl looks brand new other than a couple of stains. However, I was cleaning them the other night and the stitching is disintegrating, as in when I wipe my thumb over a stitch line the threads just vanish. I can wash away the stitching with a standard garden hose now. This does not seem right to me, the stitching should not be falling apart with the vinyl still looking so good. What is the going cost for custom cushions? Any recommendations?