The innovative 3D muscle is the result of extensive computer optimization to deliver the ideal COG location that is lower and more face centered providing a penetrating and workable ball flight for complete shot control.

• 3D Muscle design delivers a penetrating ball flight and unsurpassed ball control.
• Impact sound and feel are optimized through extensive use of Modal Analysis which separates Mizuno irons from the competition.
• Patented Grain Flow Forged™ 1025E "Pure Select" mild carbon steel provides the ultimate soft, solid, consistent feel.
• Durable double nickel chrome plated finish
• Modified U-grooves, which conform to the Condition of competition 2010, produce the ideal spin rate for maximum playability in all conditions.
• Rolled leading edge, flattened mid-sole, and rolled trailing edge deliver consistent striking ability from all types of lies.