Dynafit Unisex Ultra DNAUltra DNA by athletes, for athletes, developed with the goal to win the longest trail running races. It combines an extraordinary energy return along with a grippy Vibram outsole and a breathable upper. Features Long lasting push forward: The new SPEED PLUS midsole combined with a forefoot plate provides superior energy return at the lightest weight. Resulting in one of the best running flow out there. At the same time provides the needed cushioning