FEATURES AXIALFLOW dimple - On full shots, the new dimple generates a higher driver flight and flatter wedge flight, when compared to other tour-level balls. Sensationally soft feel is not everything - A soft feel is always expected from Mizuno - but the new RB Tour cover was tested for over three years to ensure its durability is equally satisfying. Just 272 dimples for a more defined look - A larger, more defined dimple creates a more precise outline and visual effect preferred by the majority of Mizuno's testers. Choose RB Tour X for low driver spin - Golf balls engineered for a new generation of faster clubhead speed players. Mizuno's most exhaustively tested balls ever - Mizuno set 2 R&D teams the task of working in parallel for over three years to identify the ideal balance of construction, compression, dimple configuration and cover.