JS Industries Sub XeroThis is the perfect all round rocker for creating speed and glide in small to fun conditions THE FASTEST BOARD FOR SLOW WAVES. This is everything you want in small surf. To create the Sub Xero, JS combined the new Xero with their long running summer favourite, the Psycho Nitro. It has the Nitro's ultra fast low to flat rocker and full outline, but with the nose pulled in a touch, and a wider, straighter tail. In the engine room, vee in the nose