Mizuno Pro S-4 Golf Irons

A redesigned curved muscle concentrates mass lower in the head, while progressive offset, a wider sole and deeper center of gravity promote higher launch, increased stability and improved forgiveness without compromising the precision expected from Mizuno Pro. Forged from a single billet of 1025E Mild Carbon Steel using Mizuno’s patented Grain Flow Forged HD process, the S-4 delivers the exceptional feel, feedback and workability synonymous with Mizuno’s forged heritage. Redesigned Curved Muscle Concentrates mass lower in the head to deliver increased forgiveness, higher launch and greater stability while maintaining the classic Mizuno Pro profile. Grain Flow Forged HD Forged from a single billet of 1025E Mild Carbon Steel in Hiroshima, Japan for the unmistakable soft feel and precise feedback only Mizuno can deliver. Progressive Head Geometry Increased offset, wider sole and a deeper center of gravity inspire confidence at address while promoting easier launch and greater forgiveness. Triple Cut Sole Beveled leading and trailing edges improve turf interaction for smoother entry and exit through impact. Copper Underlay Further enhances the soft, responsive feel that has become synonymous with Mizuno Pro forged irons. Harmonic Impact Technology Precisely tuned vibration characteristics create the solid, refined impact sensation expected from Mizuno’s premium forged irons. Specifications Club Loft Lie Bounce Length 3i 21 ° 60 ° 3° 39.25" 4i 24 ° 60.5 ° 3° 38.75" 5i 27 ° 61 ° 4° 38.25" 6i 30 ° 61.5 ° 5° 37.75" 7i 34 ° 62 ° 6° 37.25" 8i 38 ° 62.5 ° 7° 36.75" 9i 42 ° 63 ° 8° 36.25" PW 46 ° 63.5 ° 9° 35.75"