O'Neill Rash Vests - O'Neill Skins Hyperfreak Short Sleeve Surf Tee - Deep Sea :: Men > Rash Vests. Technobutter Skins is an exclusive 60z Nylon/ Spandex mixProtection from the sun's rays with UPF 40+ protectionLightweight constructionThe Tehcnobutter Series is even less water absorbent and has better quick-dry\n abilities than O'Neill's Skins seriesMaterials: Nylon. spandexO'Neill label to side seamStraight hemSmall O'Neill logo to chestWater resistantMen's rash vesyShort sleevesPart of O'Neill's Hyperfreak SeriesFeatures the all new TechnoButter skins Size: X-Large,Medium,Small.