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Mizuno · Irons

Mizuno Pro S1

5 reviewers
85

Strongly recommended

what does 85 mean? →

The takeaway

Gorgeous blade for pure ball strikers only.

They agree

  • +Phenomenal soft, buttery feel
  • +Stunning classic Mizuno looks
  • +Tight, consistent dispersion and spin

The knocks

  • −Tiny head punishes mishits
  • −Shorter and demands precise striking

Buy it ifyou're a skilled ball striker who loves feel

Skip it ifyou need any forgiveness

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The verdicts.

2nd Swing Golf

Master fitters, Trackman-heavy testing

Loved it

“The S1 wins the beauty contest.”

Winner of the blade category, which the fitter admits is a beauty contest, and this one is extremely pretty while also delivering very consistent, higher spin rates with classic Mizuno feel.

+ the facts · 4 pros · 2 cons
  • +Fitters' choice winner in the blade category
  • +Classic Mizuno look and feel, called the prettiest of the group
  • +Very consistent performance with reliably high spin rates
  • −Tiny head demands precise striking and carries about 15 yards shorter than the G440
  • −Widest carry deviation of the four in this test at 1.4 yards, and a 120 rpm spin deviation

For: Skilled ball-strikers playing blades in the bottom half of the set, often blended up into more forgiving heads

Full review · top pickWatch the review

Michael Newton Golf

On-course, season-long club tests

Loved it

“That feels buttery. That feels soft.”

A stunning, phenomenally soft-feeling pure muscle back with tight, controlled dispersion, but the tiny head means only strong ball strikers need apply.

+ the facts · 6 pros · 4 cons
  • +Phenomenal buttery, muted feel from the grain flow forged 1025 steel with copper underlay
  • +Stunning nickel soft satin white finish with no glare in sunlight
  • +Very tight front-to-back carry dispersion and consistent spin with no flyers
  • −Extremely compact head makes the ball look big and offers little confidence at address
  • −Heel and toe misses get punished with ball speed loss
  • −No 3-iron in the set (4-PW only)

For: Elite ball strikers who want a pure compact blade and can handle the lack of forgiveness

Full reviewWatch the review

Club Champion (TXG)

Tour-level fitting studio

Loved it

“This is a phenomenal iron.”

A gorgeous, feel-first bladed player's iron that rewards center strikes with elite feedback and workability, but punishes toe misses with 10-15 yards of lost distance.

+ the facts · 5 pros · 3 cons
  • +Outstanding feel from Grain Flow Forged HD 1025E steel with copper underlay
  • +Harmonic Impact Technology channel-back design controls vibration
  • +Muted satin finish and clean Mizuno Pro script look premium, not intimidating
  • −Small sweet spot; toe or heel strikes lose 10-15 yards
  • −Not forgiving enough for most amateurs
  • −Forged construction means a higher price than cast irons

For: Pro to low-handicap ball strikers who consistently find the center and want feel plus known yardages over forgiveness

Full reviewWatch the review

MyGolfSpy

Data-driven independent testing

Loved it

“cheap tequila, blue-eyed brunettes, and the Mazuno S1”

The muscle back in Mizuno's signature series and easily the most gushed-over club in the episode. The hosts love the matte sandblasted finish, the channel back detail and the revised feel, and admit it is tempting them into a bad decision.

+ the facts · 5 pros · 1 cons
  • +Outstanding matte, sandblasted aesthetic rather than bright chrome
  • +Channel back nudges MOI up slightly for a blade
  • +Feel tuned to be less mushy and more responsive without getting harsh
  • −It is still a muscle back, so forgiveness is close to zero

For: Accomplished ball strikers who want a blade, at $215 per club

National Club Golfer

UK magazine, hands-on club testing

Mixed

The smallest, thinnest blade in the Signature line, referenced as the compact end of the range.

+ the facts · 2 pros
  • +Very compact, clean blade shape
  • +Grain-flow forged 1025E

For: Elite ball-strikers who want a true compact blade.