O'Neill Wetsuits Basic Skins Long Sleeve Crew, BK-BLUE - Medium Pull off some gnarly tricks in the O'Neill Basic Skins rashguard. Stretch material with quick-drying properties ensures that you stay comfortable. UPF 50+ UV protection to shield you from the sun's harmful rays. Ergonomic seam placement for a better fit, Crew neck, Long sleeves. Material: 36% Nylon, 44% Polyester, 20% Spandex