Mizuno Pro S1 Irons

About this product

The Pro S1 irons are Grain Flow Forged HD from a single billet of 1025E mild carbon steel in Hiroshima, Japan, for a tight grain and pure feel.

Made for skilled players who want precision. Right or left hand, 4–PW, stiff.

Features & specs

• Grain Flow Forged HD Construction: Masterfully forged from a single billet of 1025E Pure Select Mild Carbon Steel in Hiroshima, Japan, utilizing Mizuno's advanced forging process that creates a tighter grain structure for enhanced consistency and the brand's signature buttery-soft feel through impact.
• Copper Underlay Technology: Thin copper layer beneath the chrome plating adds sophisticated nuance to impact feel, subtly softening vibrations while maintaining crisp responsiveness for the ultimate sensory connection between golfer and club.
• Channel Back Design: Innovative mass positioning behind the face achieves optimal vertical center of gravity placement, delivering consistent launch conditions while providing the firmer, tour-preferred sensation that enhances shot feedback without sacrificing feel purity.
• Tour-Refined Sole Geometry: Flatter camber profile with sharpened leading edge and increased bounce angle ensures smoother turf interaction, particularly beneficial for shallower swing angles while minimizing digging and maintaining aggressive attack angles.
• Harmonic Impact Technology: Proprietary vibration frequency tuning works in tandem with channel back geometry to deliver slightly firmer yet satisfyingly solid impact sensation, providing auditory and tactile feedback that inspires confidence with every strike.
• Nickel Chrome Soft White Satin Finish: Premium tour-inspired aesthetic with satin treatment that effectively reduces glare at address, promoting unwavering focus and visual clarity in all lighting conditions while showcasing sophisticated craftsmanship.
• Complete Set Specifications: Available in 4-PW configuration (lofts from 24° to 46°) with precise progressive offset from 0.098" to 0.075", optimized lie angles from 60.5° to 63.5°, and standard lengths from 38.75" to 35.75" for consistent distance gapping and performance.