Rash Guard, Lycra Suit, Lycra Vest, Spandex Lycra T-shirt, Rash Vest Short or Long Sleeve Rash Guard A simple and good quality rash guard from Anway. Use it under your wetsuit to help donning or just on the boat for added UV protection. May even be used underwater for UV protection in the warm waters. . . You know, you can still get a sunburn even at 30 feet under. Material: 80% Cotton, 20% Lycra