As noted above, everyone has a favorite. I use 3M Marine Protective Liquid Wax. Most Walmarts carry it. It comes in just plain wax and also, in another formulation, with a mild abrasive. It's for fiberglss boats, but it does a great job on my Bigfoot
. It says it has UV protection on the white bottle it comes in. It strikes a balance between the easy on/easy off stuff and the hard to do paste waxes. Takes me the better part of a day to do my 25 footer, but it looks really nice afterwards and lasts a season. I repolish every fall
before the cover goes on.