The Srixon Z-URS golf ball is the latest addition to its family of urethane performance technology products. The same technology platform on which the tour winning Z-UR is based, serves as the foundation for the new Z-URS ball. The Srixon Z-URS shares several proprietary Srixon technology features with the Z-UR. They both have the world’s thinnest cover – made from membrane thin, shear resistant urethane- elastomer measuring an astounding 0.02 inches thin. The same resilience enhancing proprietary bis (PentaBromophenyl) DiSulfide or PBDS is added to the core of the Z-URS for greater velocity. Also, the same 330 dimple pattern provides a high trajectory with a penetrating ball flight for stability in both cross wind and head wind. However, the main difference between the Z-URS and the Z-UR is in the core compression. The new Z-URS features a compression that is approximately 10% lower than that of the Z-UR. This gives those players who prefer it a softer feel and sound with their irons and on and around the greens.