Product description the new wilson staff dx3 urethane is the worlds softest urethane ball at 55 compression this ball rounds out the dx2 family by offering the softest feel for the better player while guaranteeing maximum distance off the tee and best in class spin performance around the green the worlds softest urethane golf ballthe 3 piece 55 compression duo urethane is designed for the feel player who demands tour performance spin and the softest feel inner mantle layerthe du pont hpf inn