Srixon Z-Star Golf Balls The Srixon Z-Star has been developed over its six generations in existence to provide maximum green side spin for unmatched control and stopping power. It is now also longer than other mid-compression tour balls and features a premium three-piece construction which gives our skilled player complete tour performance, from the tee to the green! Engineered for golfers who demand maximum spin, the new Srixon Z-STAR delivers ultimate green side spin for unrivalled stopping power. Available in Pure White and Tour Yellow, the Z-STAR features the new Fast mLayer Core and 4th Generation Spin Skin with SeRM to generate unmatched control around the greens. FastLayer Core The new FastLayer Core is soft in the centre and gradually becomes firm around its edge, providing high-speed players exceptional feel and tremendous ball speed for maximum distance. 4th Generation Spin Skin with SeRM A new urethane coating with flexible molecular bonds that dig deep into wedge and iron grooves, maximising spin for more control and more stopping power. 338 Speed Dimple Pattern Offering less drag and more lift, the 338 Speed Dimple Pattern boosts overall distance and flies straight, even in the toughest wind conditions.