The Mizuno Pro M-15 is the next evolution of forged performance — offering higher launch, added forgiveness, and a smoother flow from long iron to wedge. A multi-thickness forged Contour Ellipse Face and hollow body construction deliver faster, more consistent ball speeds, while suspended tungsten weighting enhances stability and control. Each head is Grain Flow Forged in Hiroshima, Japan, blending precision engineering with the soft, solid feel that defines every Mizuno Pro iron. Features: Grain Flow Forged Chromoly: Our strongest Forged material with the solid, soft consistent feel of Grain Flow Forged Hot Metal Blade Design: Grain Flow Forged 4135 Chromoly face and neck (2-8 iron) with multi-thickness configuration and laser welded 431 Stainless steel back piece for elevated ball speeds and launch. Partial Hollow Scoring Irons: Laser welded partial hollow construction, GFF HD 1025E Select body, with 17-4 back piece for penetrating flight. Copper Underlay: Thin copper layer beneath a nickel chrome to provide a further enhanced impact feel Harmonic Impact Technology: Fine tuned head geometry delivers ideal impact feel and feedback Hybrid Muscle Back: A high performance hollow body hybrid structure is formed by utilizing a Grain Flow Forged Chromoly Face and neck part, fused to multi-material body 1025 Mild Carbon Steel: Soft mild carbon steel for an incredibly soft feel
