Mizuno Pro S4 Irons 2026 For the Lefty Golfer

LEFT HAND MIZUNO PRO S-4 IRONS Legacy Reborn The Mizuno Pro S-4 represents the evolution of Mizuno's renowned forging craftsmanship, delivering the unmistakable feel of a player's iron with enhanced forgiveness, stability, and confidence throughout the set. Engineered for accomplished golfers, the S-4 features a redesigned curved muscle that positions mass lower in the head, creating a deeper center of gravity and lower sweet spot for improved launch, consistency, and performance from a wider range of turf conditions and strike locations. Progressive offset and a wider sole further enhance stability and forgiveness, while preserving the compact profile, precision, and shot-making versatility expected from the Mizuno Pro family. Forged from a single billet of 1025E Mild Carbon Steel using Mizuno's patented Grain Flow Forged HD process, the Pro S-4 delivers the exceptional feel, feedback, and workability that have become synonymous with Mizuno's forged heritage. Technical details Grain Flow Forged HD Forged from a single billet of 1025E Mild Carbon Steel at Mizuno's iconic Hiroshima, Japan facility, where Mizuno irons have been crafted since 1968. The Grain Flow Forged HD process delivers the unmistakably soft feel, precise feedback, and exceptional consistency that define Mizuno forged irons. 1025E Pure Select Premium 1025E Pure Select Mild Carbon Steel is manufactured to tolerances six times tighter than industry standards for exceptional consistency and feel. Copper Underlay A thin copper layer beneath the nickel chrome plating further enhances the soft, responsive feel and refined feedback that have become synonymous with Mizuno Pro forged irons. Harmonic Impact Technology (HIT) Precisely tuned vibration characteristics create the solid, refined impact sensation and exceptional feedback expected from Mizuno's premium forged irons. V-Chassis Engineered through Harmonic Impact Technology, the V-Chassis design supports a thinner topline while preserving the sound and feel expected from a Mizuno forged iron. Redesigned Curved Muscle The redesigned curved muscle positions mass lower in the head to increase launch, improve stability, and enhance forgiveness while preserving the traditional Mizuno Pro shape. Progressive Head Geometry Progressive offset, a wider sole, and a deeper center of gravity promote easier launch, enhanced stability, and greater forgiveness throughout the set. Back Milling Precision CNC back milling creates a larger area of minimum face thickness, promoting faster ball speeds, improved distance consistency, and enhanced performance across the face. Triple Cut Sole Beveled leading and trailing edges improve turf interaction for smoother entry and exit through impact, helping produce cleaner, more consistent ball striking. Refined Topline Subtle mass redistribution from the toe and hosel areas creates a cleaner, more compact appearance at address without sacrificing playability or effective hitting area. White Satin Brush Finish An elegant, durable satin finish reduces glare at address while maintaining a premium appearance round after round. Chris Voshall – (Director of Golf) “The S-4 has been developed for players who appreciate the feel of a traditional forged iron but want greater confidence through increased forgiveness. By repositioning mass lower in the head and refining the head geometry, we’ve created an iron that launches higher, offers more stability and inspires confidence without sacrificing the precision expected from Mizuno Pro.” Gallery Left Hand Specs Looking for a different set makeup? Need a ladies' build? Want your clubs built to your exact specifications? Simply add the irons you want to your cart and complete your purchase. Then email leftiesonly@comcast.net with your preferred set composition, shaft flex, grip choice, and any other custom requirements. Whether you've been professionally fit or simply know what works best for your game, we can help with: Custom set makeups Men's or ladies' builds Length adjustments (+1", -1", and more) Grip size changes Alternative shaft options Alternative grip options Loft and lie adjustments Best of all, most customizations are available while maintaining the manufacturer's warranty. As left-handed golfers, we're used to having fewer choices. We don't believe you should have to settle for a club that doesn't fit your game. If you don't see the exact setup you're looking for, call 1-800-LEFTIES or email leftiesonly@comcast.net. We'll let you know what's possible and help you build the perfect set. Most customizations are available at little or no additional cost. Don't settle. Get the clubs you truly want. 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 Left Hand Stock Shaft True Temper Dynamic Gold Mid 115 Steel Flex Weight Trajectory S300 115g Mid X100 116g Mid