Description
Mizuno Pro S-4 Golf Irons
The most forgiving iron in the Signature Series - without giving up the Mizuno feel.
The Mizuno Pro S-4 is built for accomplished golfers who want the unmistakable feel of a forged Mizuno iron with genuinely more forgiveness behind it. A redesigned curved muscle pulls mass lower into the head, while progressive offset, a wider sole and a deeper centre of gravity combine to launch the ball higher and hold it straighter on strikes away from the middle.
It sits alongside the S-1 muscle back and the S-3 split cavity in Mizuno's Signature Series - the choice for the accomplished player who wants a classic profile at address with a wider margin for error.
Every head is Grain Flow Forged HD in Hiroshima, Japan from a single billet of 1025E Mild Carbon Steel, with a copper underlay beneath the finish and Harmonic Impact Technology tuning the vibration through the head. That's the reason these irons feel the way they do at impact, and it hasn't changed.
Key Technology
Grain Flow Forged HD:
Forged in Hiroshima from a single billet of 1025E Mild Carbon Steel for exceptional feel, feedback and consistency.
Redesigned Curved Muscle:
Concentrates mass lower in the head to deliver higher launch, greater stability and increased forgiveness, while keeping the classic Mizuno Pro profile at address.
Progressive Head Geometry:
Increased offset, a wider sole and a deeper centre of gravity inspire confidence at address while making the ball easier to launch.
Triple Cut Sole:
Bevelled leading and trailing edges move the head cleanly through the turf on entry and exit, improving strike across a range of lies and conditions.
Copper Underlay:
A copper layer beneath the outer finish further softens the responsive feel synonymous with Mizuno Pro forged irons.
Harmonic Impact Technology:
Head vibration is deliberately tuned to produce the solid, refined sensation expected from a premium Mizuno forging.
Specification
| Set Makeup | 4-PW (7 clubs) |
| Dexterity | Right Handed |
| Shaft | True Temper Dynamic Gold Mid 115 (steel) |
| Flex | Stiff |
| Grip | Golf Pride Z-Cord |
| Head Material | 1025E Mild Carbon Steel |
| Construction | Grain Flow Forged HD, Hiroshima, Japan |
| Warranty | Manufacturer warranty against defects |
Loft, Lie and Length
| Club | Loft | Lie | Offset (in) | Length (in) |
|---|---|---|---|---|
| 4 Iron | 24° | 60.5° | 0.165 | 38.75 |
| 5 Iron | 27° | 61.0° | 0.157 | 38.25 |
| 6 Iron | 30° | 61.5° | 0.150 | 37.75 |
| 7 Iron | 34° | 62.0° | 0.138 | 37.25 |
| 8 Iron | 38° | 62.5° | 0.126 | 36.75 |
| 9 Iron | 42° | 63.0° | 0.114 | 36.25 |
| PW | 46° | 63.5° | 0.102 | 35.75 |
Who Are They For?
The S-4 is a players iron, not a game improvement iron. Mizuno position it for golfers in the 0-8 handicap range. If you already strike the ball well and want a forged Mizuno with a little more help on off-centre hits, this is the one. If you're looking for a bigger, more forgiving head with more ball speed, the JPX range is the better starting point.
Frequently Asked Questions
How does the S-4 compare to the S-3?
The S-4 is the more forgiving of the two. It carries more offset, a wider sole, a lower sweet spot and a deeper centre of gravity, which makes it easier to launch. The S-3 is the more compact, tour-focused head.
What shaft comes as standard?
This set is built with the stock True Temper Dynamic Gold Mid 115 in Stiff flex, with the stock Golf Pride Z-Cord grip.
Are the S-4 irons forged?
Yes. Every head is Grain Flow Forged HD in Hiroshima, Japan from a single billet of 1025E Mild Carbon Steel.
What is the 7-iron loft?
34 degrees - a traditional players-iron loft rather than the stronger lofts found in distance irons.
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