Xr pro irons offer xr speed in a refined iron shape preferred by better playerscup 360for the first time ever wersquore putting cup faced technology into a playerrsquos iron our cup 360 provides outrageous ball speed all across the facelower cg more moi and ball speedthe internal standing wave is the ultimate team player itrsquos refined the way that we lower cg increased moi and gives the face cup the freedom to provide more ball speednew construction and refined shapinga playerr