Protect yourself from strong UV rays with a Rash Vest. If you are hanging on the beach, SUP boarding, Wakeboarding or surfing a Rash Vest will protect you against the sun. You can use a rash vest as an extra layer underneath your wetsuit for added warmth and stop you from getting a rash when surfing. Mens specific rash vests has a specific design to suit a male body shape. With stitching in the right places that allows for freedom of movement and thickness are important factors when choosing a rash vest that fits you perfectly.