The new Tour-proven Titleist Pro V1® golf ball provides the ultimate combination of distance, consistent flight, very soft feel, and Drop-And-Stop™ greenside control. This advanced performance results from a new innovative ZG process core technology, Urethane Elastomer cover, spherically tiled 352 tetrahedral dimple design and responsive ionomeric casing layer. And with 3 axes of symmetry, the 2011 Pro V1's new aerodynamics deliver a penetrating ball flight that holds its line in the wind. The Best Keep Getting Better.