Try Urethane with the Z-Star and Z-Star XV
Like all tour-level golf balls, the Srixon Z-Star and Z-Star XV boast a Urethane cover, which sets the bar for cover materials. Urethane – a soft and flexible polymer – will give you the highest possible spin rates combined with the best feel; benefits you will really notice when hitting chip and pitch shots. However, if you like to play lower flighted chip-and-runs you might prefer other options in Srixon’s range that are made with Ionomer covers. While this type of cover doesn’t generate as much spin, it is slightly more durable and offers a cheaper alternative. | 
