PRO S-1 IRONS - LEGACY REBORN
The Mizuno Pro S-1 irons are expertly crafted muscle backs tailored for golfers who seek the highest level of precision and playability. At the heart of the Mizuno Pro S-1 lies the exceptional Grain Flow Forged HD process, meticulously performed in Hiroshima, Japan. Each iron is forged from a single billet of 1025E Pure Select Mild Carbon Steel, which delivers the signature soft and responsive feel at impact that Mizuno is renowned for worldwide. Additionally, a copper underlay enhances this experience by subtly refining vibration patterns, resulting in optimised feedback that is truly satisfying.
These irons have been developed and rigorously tested with insights from professional tour players. The incorporation of a Channel Back Design redistributes mass to ensure improved vertical stability and a more consistent centre of gravity. This innovative design works in harmony with Mizuno's Harmonic Impact Technology, which fine-tunes the feel by adjusting the club's vibration frequencies, providing even more responsive feedback.
Channel Back Design
This unique design promotes a consistent CG location, offering a more solid feel and enhanced vertical stability. By subtly repositioning mass behind the face, the Channel Back Design achieves a stable vertical centre of gravity, ensuring consistent launch conditions. It also provides a firmer, tour-preferred sensation, amplifying responsiveness while maintaining an unparalleled feel.
Tour-Tested and Confirmed Sole
With tour input playing a crucial role, the S-1 sole has undergone careful refinement to enhance turf interaction. It features a flatter camber profile, a sharpened leading edge, and an increased bounce angle. This design ensures smoother interactions with the turf, particularly beneficial for players with shallower swings, minimising digging and allowing for confident aggressive angles of attack.
Soft White Satin Finish
The irons are presented with a refined Nickel Chrome Soft White Satin finish, delivering a premium, tour-inspired aesthetic. This satin treatment not only elevates visual appeal but also effectively reduces glare at address, supporting unwavering focus and visual clarity under varying lighting conditions.
Specifications
| Club # | Loft ° | Lie Angle | Offset (inch) | Length (inch) |
| 4 | 24 | 60.5 | 0.098 | 38.75 |
| 5 | 27 | 61 | 0.094 | 38.25 |
| 6 | 30 | 61.5 | 0.091 | 37.75 |
| 7 | 34 | 62 | 0.087 | 37.25 |
| 8 | 38 | 62.5 | 0.083 | 36.75 |
| 9 | 42 | 63 | 0.079 | 36.25 |
| PW | 46 | 63.5 | 0.075 | 35.75 |





