The jpX-S golf balls MIZUNO are 3 pieces with a new softer compression in each ball, with which they offer a greater balanced performance and expand the ranges of swing speeds. Made with the softest core, they improve the sensations on impact and increase the initial speed, in most players. Its improvements are noticeable in speed, feel, turn, aerodynamics and durability Improved version of the Dimple-Cluster design: the micro-dimples are activated on the descent and increase air time through the aerodynamic design to improve the aerodynamics of JPX-S, converting mph into yards. 54 extra micro dimples (566 dimples in total). Micro dimples have an effect at lower ball speeds, and can maintain their flight for longer. Structure: 3 pieces. Dimples: 566. Trajectory: Medium high. Feeling: Very soft. Spin short game: Medium. Driver rotation: Medium low.