Mizuno Pro S-4 Irons

The Mizuno Pro S-4 irons represent the evolution of Mizuno's renowned forging craftsmanship, blending the refined precision of a player's iron with enhanced forgiveness and stability. Designed for golfers who demand exceptional feel without sacrificing playability, the Pro S-4 features a slightly more forgiving profile with graduated offset, a wider sole, and a deeper center of gravity for improved launch, consistency, and control. A lower sweet spot further enhances performance from a variety of turf conditions and strike locations, while preserving the compact shaping, soft feel, and shot-making versatility expected from the Mizuno Pro series. Technical Details Grain Flow Forged HD — one-piece Grain Flow Forged HD from 1025E Pure Select mild carbon steel at Mizuno's iconic facility in Hiroshima, Japan, where Mizuno irons have been produced since 1968. Harmonic Impact Technology — fine-tuned head geometry delivers ideal impact feel and feedback. Back Milling — CNC milled from the sole up, creating a larger area of minimum face thickness for consistently increased ball speeds. V-Chassis — engineered via Mizuno's Harmonic Impact Technology, the V-Chassis allows a thinner top line without sacrificing feel and sound. White Satin Brush Finish — a modern, elegant, yet durable non-glare finish. Triple Cut Sole — a beveled trailing edge and blunted leading edge ensure clean turf interaction for solid contact. 1025E Pure Select — six times tighter tolerance than industry standard for greater purity. Copper Underlay — a thin copper layer beneath a nickel chrome finish provides further enhanced impact feel. Refined Topline — mass taken from the toe portion and a lower hosel blend create a smaller profile without loss of effective hitting area. Compact Player's Profile — dramatically reduced topline and blade length throughout the set. Mizuno Pro S-4 Irons Specification Club # Loft ° Lie Angle Offset (inch) Length (inch) 3 21 60 0.173 39.25 4 24 60.5 0.165 38.75 5 27 61 0.157 38.25 6 30 61.5 0.150 37.75 7 34 62 0.138 37.25 8 38 62.5 0.126 36.75 9 42 63 0.114 36.25 PW 46 63.5 0.102 35.75 Dexterity: RH & LH: 3–PW