One of our designers went to a women's surf clinic and was so inspired by the rash guards she saw the surfer girls wearing that she created a version just for us. With a snug second-skin fit to prevent irritation and smart UPF 50 sun protection (think of UPF as SPF, but for fabrics), it's made for riding the waves, but we also love it for just relaxing waterside. Cut with a slightly longer length so it won't hike up, it's finished with a zipper at the back neckline so it's easy to get on and off. It's no wonder we're obsessed. (P.S. It also comes in a crewcuts version for the pint-size surfers in your life.) Recommended by the Skin Cancer Foundation as an effective UV protectant.