The MX-300 was designed for players looking for the assistance of Mizuno's undercut cavity design and solid Grain Flow Forged feel - without the shotmaking constraints of normal cavity offset and sole width.

With address dimensions (top line, sole width, face size) falling squarely between the MP-52 and MX-200, and offset closer to MP characteristics , the new MX-300 offers a more solid feel and greater workability than any other iron in the MX line.

The full cavity utilized in the MX-300 irons also contains a reconfigured Y-TUNE Pro technology for enhanced feel and flight control. The milled pocket cavity (3-7) redistributes 12 grams of weight low and deep to provide a high penetrating launch, while the scoring irons (8-PW) utilize a solid power bar design for greater workability. The sole of the MX-300 irons is dual cambered to minimize turf drag and digging through impact.