John,We covered our v-berth and aft cabin bunk cushions with Sunbrella furniture fabric over ten years ago and they still look good. The best thing is they can be removed and washed. We used an ultrasuede fabric in the main cabin settees, but as we are half-year live aboards, the ultrasuede fabric failed at ten years. We learned a lot about fabric after that. Look for the highest "double rub" number you can find. That is the standard industry test for fabric wear. The new synthetic lether fabric we now have is used for aircraft upholstry. We had the covers professionaly made but have made almost everything ourselves on a standard sewing machine. If you don't already have it, get a Sailrite catalog. It has a lot of usefull information as well as all the supplies you will need.Good luck,Daves/v ARIEL