DYNAPOWER IRONS New Women's Dynapowerâ„¢ irons features variable face thicknesses to make more of the clubface hot, especially center to toe where 85% of shots are hit. FEATURES & TECHNOLOGY DYNAPOWER A.I. Dynapower analyzed thousands of combinations of variable face thickness and power holes locations, delivering the optimal combination. Dynapower Irons deliver maximum ball speeds across the entire club face, with a focus on the center and toe, because that is where 65% of shots are struck by 10+