Equipment

Mizuno adds Pro S-1 irons to Signature Series lineup

Published

11 months ago

Jul 14, 2025

Mizuno has unveiled the latest addition to its Signature Series with the release of the Mizuno Pro S-1 irons. Designed as a true muscle back set, the S-1 is aimed squarely at better players who value shot-shaping ability, refined feedback, and clean turf interaction, the company says.

Building on the popularity of the Mizuno Pro S-3 irons released earlier this year, the S-1 offers a different profile and performance characteristics suited to players with a more traditional preference in blade design.

For comparison, a Pro S-3 iron is pictured below.

Let’s dig in to some additional details.

Mizuno Pro S-1 irons: Key features

Grain Flow Forged Construction

No surprise here. The S-1 irons are forged in Hiroshima, Japan, from a single billet of 1025E Pure Select Mild Carbon Steel. Mizuno’s forging process, used across its better-player irons, is intended to deliver consistent shaping and precise feedback.

Copper Underlay for Enhanced Feel

Ditto. A layer of copper beneath the chrome finish helps soften vibration and improve the sensory connection at impact, which Mizuno has used in recent models and continues here.

Channel Back Design

By carving a shallow channel into the back of the clubhead, Mizuno engineers were able to redistribute mass to improve vertical stability. The result is a more predictable launch and center of gravity placement without altering the traditional blade appearance.

Refined Sole Geometry

Compared to the Pro 241 blade, the S-1 introduces:

Flatter camber
Sharper leading edge
One additional degree of bounce

These changes are intended to reduce digging and offer more forgiveness on slightly shallower strikes.

Tour-Inspired Aesthetics

The S-1 features a compact shape with a square toe, thin topline, and straight edges. Its Soft White Satin finish is subtle and designed to reduce glare at address.

Pricing, Specs, and Availability

Pricing: $215/club

Availability: The Mizuno Pro S-1 irons will be available through authorized Mizuno fitters and retailers beginning August 2025.

Stock shaft: KBS Tour

Stock grip: Golf Pride Tour Velvet

Full specs below

MIZUNO PRO S1	4	5	6	7	8	9	PW
Loft	24°	27°	30°	34°	38°	42°	46°
Lie	60.5°	61°	61.5°	62°	62.5°	63°	63.5°
Length	38.75″	38.25″	37.75″	37.25″	36.75″	36.25″	35.75″

Equipment

Slab city on the Korn Ferry Tour — Lead Tape Report

Published

13 hours ago

Jun 10, 2026

Andrew Von Lossow

This week, we have our Tour Photographer, Greg Moore, on the ground at the OccuNet Classic at Tascosa Golf Club in Amarillo, Texas, for the 14th event of the 2026 Korn Ferry Tour season. With that, we see some great things in the Lead Tape Report as we roll into Amarillo.

Joel Thelen

Monday Qualifier, Joel Thelen is in the field this week. He has played on the Korn Ferry Tour for a full season in 2023, and he is back in action this week. A couple of clubs caught my eye this week in his bag.

First off: His trusted Titleist 816 H2 hybrid. This club came out in October of 2015, and it still remains strong in the bag. Also, take a look at this Odyssey White Hot OG 7, putting a capital S in the 7S model. This custom neck has some impressive lean for an arm-lock-style putter. The bottom of the putter is covered in tape for optimal weighting.

Mitchell Meissner

Taking a look at Mitchell Meissner’s bag this week, we have some great lead tape coverage. Top to bottom working from fairway metals, irons, and wedges. We can see on the short irons and wedges that there is tape at the base of the grip, adding a little counterbalance. Along with that, some tape on the short irons and wedges as well. Moving to his putter, he rolls the Odyssey 7 Bird putter. Meissner putts left-handed and strikes the ball right-handed.

Whats in the Bag

Bud Cauley WITB 2026 (June)

Published

13 hours ago

Jun 10, 2026

Will Schube

Bud Cauley had >14 clubs in his bag when photographed prior to the Memorial Tournament.

Driver: Titleist GTS2 (8 degrees)
Shaft: Fujikura Ventus Black 6 X

3-wood: Titleist GTS3 (15 degrees, B1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 70 TX

7-wood: Titleist GTS3 (21 degrees, D1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 80 TX

Irons: Titleist U505 (3), Titleist 620 MB (4-9)
Shafts: Fujikura Ventus Black HB 8 X, True Temper Dynamic Gold Tour Issue

Wedges: Titleist Vokey Design SM11 (48-10F, 52-12F, 56-14F), WedgeWorks (60-K*)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putters: Scotty Cameron Tour Prototype, Scotty Cameron GOLO 6.3 Prototype

Grips: Golf Pride Tour Velvet Align

Ball: Titleist Pro V1

See more in-hand photos of Bud Cauley’s clubs here.

Equipment

Name every set of irons you’ve owned – GolfWRXers discuss

Published

13 hours ago

Jun 10, 2026

Will Schube

In our forums, one user has offered up a prompt for the true sickos, inviting fellow forum members to share every set of irons they’ve ever owned. As to be expected, this is a lengthy forum topic.

@Lamosteve began:

Can you name every set of irons you’ve owned? Here’s mine

Spalding Dots
Spalding Eclipse
Ram Lazer FX
Lynx Parallax
Mizuno EZ Comp
Ben Hogans
Cleveland CG Red
Taylor Made R9s
PING i20
PING iE1
Taylor Made M6

Our members in the forum have been offering up their own collections. Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

macedan: “Started with a hand-me-down Golden Bear set from my brother when I was in high school, never really played more than once a year or got into the game until about summer of 2017. First purchased a set of Cleveland CG4’s (I actually really miss this set sometimes, soft & not terribly large for a GI iron), moved into Nike Vapor Fly’s by the end of the year. Those lasted until spring of 18 when I decided I wanted new, so I traded them in for TM Rbladez. Honestly, although I liked the Rbladez, poor decision on my part, I think this was really about the only time so far that after a week or two I was kicking myself for not staying with what I had. Rbladez stayed with me until late last summer when I switched to P790’s and (knock on wood) I am hoping this will be my longest lasting set.”
JimmyC59: “MacGregor Jack Nicklaus Triple Crown. Palmer The Standard. Still play these.”
jgrzask: “Tommy Armour 845u
Mizuno MP-32
Mizuno MP-33 (2 sets)
Bridgestone J33cb – still own
Srixon i-302 (2 sets) – still own
Tourstage X-Blades – still own
Mizuno Hot Metal – still own
Nike Forged Blades – still own
Titleist 714 AP1 – still own
Cobra Forged SS – still own”

Entire Thread: “Name every set of irons you’ve owned.”