PURSUIT OF HIGH FUNCTIONALITY THAT GOES BEYOND THE CONCEPT OF MUSCLEBACKS By using special technology that combines 25g of pure titanium into a single head, mis-hit forgiveness and head size providing sense of security were both attained while maintaining the muscleback shape. The extra weight of titanium, which has about half the specific gravity of soft iron, is distributed to the periphery of the face to achieve a face size equivalent to a soft iron cavity back and a deep center of gravity despite being a muscleback.

CRAFTSMANSHIP LEVERAGED TO ATTAIN SUPERIOR FEEL AND SOUND Built-in pure titanium has its setbacks in that hits will feel harder. In addition, titanium is not included in irons 8 to PW, which creates differences in feel. To solve this problem, the soft S20C material is used for irons #5 to #7 in which titanium is built in, and the hard S25C material is used for irons #8 to PW. By using different soft iron materials with different hardness, consistent sound and feel across the irons were pursued. The thickness of the face of the soft iron area is secured while titanium is built in, providing the superior feel of soft iron forged musclebacks sought by professionals and advanced players.