Callaway’s XR Drivers are built off successful innovations from the Callaway Golf Company. It features the R•Moto Face, which Callaway developed to reduce the face thickness and weight to not only increase ball speed off of the face but to allow weight to be redistributed to other areas which help give it a low Center of Gravity to promote a better launch angle. In addition, Callaway introduced a innovation called the Speed Step Crown, which lead to a more aerodynamic design for more speed and more distance. Last but not least, the OptiFit Hosel which allows users to find the perfect Loft and Lie setting for their swing and game.