DESC: Building upon the award winning success of Cut Muscle design, the Mizuno product development team evolved this game changing technology to now include FORGIVENESS. The new MP-60 Cut Muscle" Cavity continues to maximize the performance for today's more aggressive game. The Grain Flow Forged MP-60 is 4% larger and has a 10% larger sweet area when compared to its outstanding Cut Muscle counterpart, the MP-32. The Cut Muscle design in the MP-60 delivers a slightly higher ball flight in the long irons, and a mid trajectory in the scoring irons, while the Cut Muscle design precisely positions the COG in each club for a consistent and predictable ball flight. The MP-60" is the next generation of game-changing Cut Muscle Design Technology; award-winning performance with added FORGIVENESS!