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PRE-ORDER: Iron set ships February 10th, 2022.
When Mizuno sets out to update their legendary muscleback irons, they make changes in small, incremental steps, in order to preserve the time-tested design. The new Pro 221 Iron, which replaces the outgoing MP-20, has evolved to be more playable through refinements in shape and weight placement. Mizuno bevelled the irons to deliver the appearance of a shorter face profile and narrower topline, without eliminating the always-important upper blade mass. The Pro 221 is Grain Flow Forged in Japan from 1025E Pure Select mild carbon steel, then plated in soft copper and Nickel Chrome, the original layering from Mizuno's iconic TN87 blade. Mizuno returned to the soft copper underlay in 2019 after tour professionals unanimously preffered the feel during testing.
One-piece Grain Flow Forged HD from 1025E Pure Select mild carbon steel at Mizuno's iconic facility in Hiroshima, Japan
Microlayer of copper beneath Nickel Chrome for the purest, softest feel made famous in the legendary TN87
Thicker behind impact with mass relocated from heel area to the muscle pad that produces a slightly muted sound preferred during tour testing
Bevelled to deliver a more compact appearance with a thinner top edge and shorter head length without loss of playability
Mizuno's shortest CG/shaft axis is consistent from 3-PW allowing for controlled shot shaping through the set
Following feedback from the tour, 8-PW are dramatically reduced in size with a heavily tapered upper blade to control trajectory
Shaft: Project X LS Steel