The Mizuno Pro S-4 is the most forgiving iron in the Signature Series, combining elevated launch, enhanced stability, progressive shaping, and legendary forged feel into a player's cavity back designed to inspire confidence from the longest iron to the scoring clubs.

Redesigned Muscle Design with Flowing Curved Geometry

• Delivers a more refined appearance while strategically distributing mass to enhance stability and forgiveness. The flowing geometry creates a premium aesthetic that blends traditional Mizuno craftsmanship with modern performance.

Higher Launching, More Forgiving Player's Cavity Back

• Helps golfers launch the ball more easily while improving forgiveness on off-center strikes. The added stability promotes more consistent carry distances and improved performance throughout the set without sacrificing the compact look preferred by better players.

Progressive Offset and Topline Design

• Long irons inspire confidence and help generate higher launch and forgiveness, while the scoring clubs transition into a more compact profile that delivers the precision and control demanded by accomplished golfers.

Grain Flow Forged HD with Copper Underlay

• Produces the unmistakably soft, responsive feel Mizuno is known for while delivering precise feedback at impact. The copper underlay further enhances vibration characteristics for an even more refined sensation.

1025E Pure Select Mild Carbon Steel

• Provides exceptional feel, consistency, and workability, allowing golfers to shape shots with confidence while maintaining the soft impact sensation expected from a Mizuno forged Iron.

Triple-Cut Sole

• Promotes a smoother entry and exit through the turf, helping maintain speed through impact while delivering cleaner strikes from a variety of turf conditions and lie angles.

Harmonic Impact Technology (H.I.T.) Sound Tuning

• Creates the solid, satisfying sound and feel associated with elite forged irons while providing immediate feedback players can trust.