The Quiksilver Mix Surf Youth Boys S/S Rashguard. More turning, no burning. The Mix Surf Short Sleeve Surf Tee for boys is good to go, with a soft, brushed-cotton feel similar to your favorite t-shirt. Chlorine resistant and enhanced with UPF 50 sun protection, there are no worries about rashing or burning. As one of the most advanced surf tees ever designed, its loose, comfortable fit won't ride up. So there's no tugging or pulling down to keep skin covered. And supreme wicking technology has this surf tee drying extra fast to take you from the water and into whatever the day has planned.