I had Sunbrella when I first bought the boat eight years ago, it tore apart in the first year storm. I decided to go with a very heavy vinyl. It’s held up beautifully for 7+ years. Very easy to clean. I do put a waterproof sealer on it once a year to make sure all the threads don’t get eaten up. If I had it done today, I would go back to the vinyl, but this time I would have all of the seams glued together rather than sewn.