Mizuno Pro 221 Proj X LS 6.0 Irons Set (3-PW, 8-Club Set)

Original price was: $1,499.99.Current price is: $1,099.99.

Mizuno Pro 221 Proj X LS 6.0 Irons Set (3-PW, 8-Club Set)

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Mizuno Pro 221 Iron Set

The Ultimate Muscleback

Inspired by the iconic blades of Mizuno past – evolved to be more playable through incremental refinements in shape and weight placement. Bevelled for the appearance of a shorter face profile and narrower top line – without loss of mass in the upper blade. With dramatically more compact scoring irons than its predecessors. Grain Flow Forged in Hiroshima, Japan, with a soft copper underlay for a uniquely satisfying Mizuno sensation at impact.


  • FORGED IN HIROSHIMA JAPAN: One-piece Grain Flow Forged HD from 1025E Pure Select mild carbon steel at Mizuno’s iconic facility in Hiroshima, Japan – where Mizuno irons have been produced since 1968.
  • SOFT COPPER UNDERLAY: A microlayer of copper beneath Nickel Chrome – for the purest, softest feel made famous in the legendary TN87. Reintroduced in 2019.
  • THICKER BEHIND IMPACT: Mass relocated from the heel area to muscle pad produces a slightly muted sound preferred in our ‘blind’ tour tests.
  • SHORTER & MORE COMPACT APPEARANCE: Shrewdly bevelled to deliver the appearance of a thinner top edge and shorter head length – without loss of playability.
  • CONTROLLED SHOT SHAPING: Mizuno’s shortest CG / shaft axis is consistent from 3-PW, allowing controlled fades and draw feels right through the set.
  • NOTICEABLY SMALLER SHORT IRONS: Following feedback from the tour, 8-PW are dramatically reduced in size – with a heavily taped upper blade to control trajectory.

“We’re obviously working in small increments on a Mizuno muscleback – we have to dig quite deep to get any negative feedback. The copper underlay and Grain Flow forging was such a great foundation on the MP-20. Players with a good eye will enjoy the subtle shape changes through the set – especially the 8, 9, PW.” – David Llewellyn, Director of R&D


Club # Loft Lie Bounce Offset Length Swing Weight
3 21º 59.5º 0.102 39.0″ D3
4 24º 60.0º 0.098 38.5″ D3
5 27º 60.5º 0.094 38.0″ D3
6 30º 61.0º 0.091 37.5″ D3
7 34º 61.5º 0.087 37.0″ D3
8 38º 62.0º 0.083 36.5″ D3
9 42º 62.5º 0.079 36.0″ D3
PW 46º 63.0º 0.075 35.5″ D4


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