The Mizuno Pro S-4 Irons blend the classic Mizuno Pro profile with modern forgiveness, giving skilled players the confidence to attack pins without sacrificing workability. Built for golfers who want a players iron with a little more help where it counts.

At the heart of the S-4 is a redesigned curved muscle back that concentrates mass lower in the head. The result is higher launch, increased forgiveness and greater stability through the bag, all wrapped in a shape that still looks right at address.

A triple cut sole with bevelled leading and trailing edges ensures clean turf interaction, promoting smoother entry and exit through impact on any lie. Progressive head geometry adjusts offset, sole width and centre of gravity depth throughout the set, making the long irons easier to launch while keeping the short irons precise and controlled.

Benefits & Features

• Redesigned Curved Muscle Back: Mass positioned lower in the head for higher launch, increased forgiveness and greater stability.
• Triple Cut Sole: Bevelled leading and trailing edges improve turf interaction for cleaner contact through impact.
• Progressive Head Geometry: Offset, sole width and CG depth shift progressively through the set to optimise launch and confidence from long irons to scoring clubs.
• Classic Mizuno Pro Shaping: A refined profile at address that appeals to better players who demand visual precision.

If you value the Mizuno Pro aesthetic but want a touch more forgiveness across the set, the S-4 deserves a serious look.