O'Neill Rash Vests - O'Neill Skins Short Sleeve Rash Vest - Deep Sea :: Men > Rash Vests. Strategic Seamless Paddle Zones: 4 way stretch with anatomically shaped\n panels for more efficient movementMaterial: Nylon. spandexFlatloc Stitched Seams: Breathable and comfortable constructionUV Protection: UPF 50+Quick Dry: YesBoardshort Connector: YesSlim Fit: Tighter construction across the abdomen Size: X-Large,Medium,Small.