Mizuno has today introduced its new Pro M-13 and Pro M-15 irons, as well as a new Pro Fli-Hi with a fully upgraded chassis, all part of its new Modern Series.

The Mizuno Pro M-13 and Pro M-15 are engineered for players seeking a bit more speed, forgiveness, and playability, while maintaining the Mizuno Pro (241, 243, 245) shaping and feel.

The Modern Series debuts with two distinct models, each designed for a specific type of ball striker.

• The Pro M-13 features tour-preferred proportions and a faster, more consistent flight profile.
• The Pro M-15 delivers higher launch and additional forgiveness that blends smoothly through the set.

Pro M-13 Irons

Integrated construction:

• 4 & 5-iron: Grain Flow forged HD 4120 Chromoly face, topline, and neck. 431 Stainless Steel back part. Integration of Contoured Ellipse CORAREA technology.
• 6, 7 & 8-iron: Full Body Grain Flow forged HD 4115 Chromoly face, topline and neck. 431 Stainless Steel back part. Micro-slot Technology.
• 9, PW & GW: Pure one-piece Grain Flow Forged HD 1025 Elite Steel. Unparalleled feel and feedback in the scoring irons.

Triple cut sole:

• Leading edge bevel provides a sharp leading edge with a high bounce surface, designed for ease of entering the turf without digging. In addition, the trailing edge bevel reduces turf drag as the head passes through the turf.

Specs

Pro M-15 Irons

Integrated Construction

• 4 to 7-iron: Grain Flow forged HD 4135+ Chromoly face and neck. 431 Stainless Steel back part. Hollow-body design with tungsten weighting
• 8-iron: Grain Flow forged HD 4135+ Chromoly face and neck. 431 Stainless Steel back part. Hollow-body design.
• 9, PW & GW: Grain Flow forged HD 1025E Steel Body. 17-4 Stainless Steel back part. Partial hollow-body design.

Improved turf interaction:

• Through sole shape and added bounce.

Specs

Pro Fli-Hi

The Mizuno Pro Fli-Hi has become a fixture with the majority of Mizuno’s tour players. An easy launching, powerful long iron replacement that is designed to flow seamlessly into either the Mizuno Pro M-13, M-15, or full iron set.

The 2026 edition now features a chassis fully upgraded to 4335+ Nickel Chromoly for elevated ball speeds.

Key Features

• Nickel Chromoly 4335+ Hollow Body Construction: Utilizing a heat-treated ultra high strength Chromoly for elevated average ball speeds, with a more pliable body and bendable hosel.
• Internal Tungsten Weighting: 26 grams of weight low in the head for elevated launch compared to traditional long irons.
• Offset Face Weld: Placing the weld line inside the upper face-gauge allowed a thinner topline. On the bottom edge, the weld line is back from the face, allowing greater flex and ball speeds from low on the face.
• Harmonic Impact Technology: Applied to best match the vibration patterns Mizuno’s tour players identified with a soft muscle-back feel.
• Increased Bounce Angle: Increased by a degree for improved turf interaction.

Specs

Price & Availability

• Mizuno Pro M-13 Irons: $215
• Mizuno Pro M-15 Irons: $215
• Mizuno Pro Fli-Hi: $270

Pre-sale: 1/19

At retail: 2/5