There’s a sweet spot between the precision of a players iron and the added help many golfers appreciate throughout a set.

The new Mizuno Pro S-4 is designed to occupy that space.

Joining the Pro S-1 and Pro S-3, the S-4 gives accomplished golfers another option within Mizuno’s forged players-iron family – this one geared toward easier launch and added forgiveness while retaining the feel and shot-making qualities associated with Mizuno Pro.

Available at Worldwide Golf, the S-4 broadens a lineup designed to accommodate different preferences in shaping, playability and control.

Where Does the Mizuno Pro S-4 Fit in the Pro S Family?

The three Pro S models offer a clear progression. The Mizuno Pro S-1 is a pure muscle-back aimed at highly skilled ball-strikers who prioritize precision, workability and direct feedback. Its compact profile and Channel Back design reflect that focus.

The Mizuno Pro S-3 moves into a shallow cavity-back construction, adding a measure of stability while preserving the compact proportions of a players iron.

The S-4 takes another step toward playability, with a slightly more accommodating profile intended for golfers who want Mizuno Pro characteristics with added forgiveness.

What Makes the Mizuno Pro S-4 Different?

Much of the S-4’s character comes from a redesigned curved muscle on the back of the clubhead.

The shape concentrates more mass lower in the head, while progressive geometry adds offset, sole width and a deeper center of gravity where it’s needed. Together, those changes are designed to make it easier to produce a strong trajectory while preserving the control and precision associated with the Pro S family.

The result is a model that retains the familiar Pro S look while carving out a more forgiving place in the lineup.

Grain Flow Forged HD Delivers the Mizuno Feel

Each S-4 iron is Grain Flow Forged HD from a single billet of 1025E Mild Carbon Steel in Hiroshima, Japan.

Mizuno complements that construction with a copper underlay beneath the finish and Harmonic Impact Technology, which tunes vibration characteristics at impact.

Those elements work together to create the soft, responsive sensation and feedback that have long been associated with Mizuno’s forged irons.

Triple Cut Sole Helps the Club Move Through the Turf

The S-4 also features Mizuno’s Triple Cut Sole, with beveled leading and trailing edges designed to improve interaction with the ground.

The leading edge helps the club enter the turf cleanly, while trailing-edge relief promotes a smoother exit through impact. That shaping allows the S-4 to incorporate a wider sole while keeping the club moving efficiently through different lies.

Who Should Play the Mizuno Pro S-4?

The S-4 is designed for accomplished golfers who prefer the appearance and feedback of a forged players iron but want a little more assistance from one club to the next.

It may particularly appeal to players who like the Mizuno Pro aesthetic but prefer a slightly more substantial profile and an easier path to consistent trajectory.

A professional fitting can also help determine whether the S-1, S-3 or S-4 best matches a golfer’s delivery, preferred ball flight and visual preferences at address rather than relying on handicap alone.

Find the Mizuno Pro S-4 at Worldwide Golf

With the addition of the S-4, golfers now have three distinct ways to experience the Mizuno Pro S family.

From the muscle-back S-1 to the cavity-back S-3 and the more accommodating S-4, the lineup gives players greater flexibility to find the model that suits their game.

CLICK HERE to shop Mizuno Pro S irons at Worldwide Golf.