The Callaway Epic Pro irons have every performance advantage with the most ultra-premium materials and advancements of some of the most revolutionary technologies in the industry. The next generation 360 Face Cup Technology is 1mm at its thinnest point to add even more ball speed on center hits and to further minimize distance loss on off-center hits. To enhance launch and trajectory, an incredibly high amount of MIM’ed (Metal-Injected Molding) tungsten was introduced into Callaways Internal Standing Wave technology to optimize CG location. The CG is lowered in the long irons for easy launch and high, long carry, and raised in the short irons for lower, more controllable flight. The Exo-Cage head construction stiffens the body to allow the face to take on more of the load at impact to promote faster ball speed and distance. The slightly smaller head, slimmer topline, thinner sole and less offset all promote the kind of keen feel and workability better players want.