Rashvests for the beach, sea and surf. These are great for many uses - Sun Protection (look for UV50 rated for the best protection), Warmth on the beach or in the water (there are standard layers and thermal layers), or to prevent chaffing by wearing under a wetsuit (usually a high neck rashvest would be selected for this purpose, the neck being the most likely area of the body to be chaffed and irritated by the wetsuit).