It took four years of rapid-fire development and worldwide tour usage to raise Mizuno metalwoods from the shadows of our iconic irons. Now, after multiple iterative developments for stability, sound, and spin, we’ve added exceptional ball speeds to our performance equation. Introducing the CORTECH Chamber.
Mizuno’s CORTECH Chamber encases a stainless-steel weight with elastomeric TPU – taking stress from the clubface and creating an additional energy source. At the same time locating weight closer to the clubface to reduce spin rates. While contributing to a more solid, powerful sensation at impact.
“Our player testing over the years shows that placing extra weight close to the face results in faster ball speeds and low spin rates. We’ve been steadily working towards the CORTECH Chamber, which is incredibly effective at that job. Encasing the steel weight within the TPU Chamber means that we’re moving weight close to the face at the same time as creating an additional source of energy. Steel is twice the density of Titanium, but is not weldable – so the TPU has a second role of securing the weight.”
- David Llwelleyn, Mizuno R&D
ST-Z 230 is a mid-low spinning, high launching, adjustable hybrid – developed hand in hand with our tour advisors, yet playable for all levels. Utilizing a high energy MAS1C steel face boosted by Mizuno’s CORTECH Chamber for exceptional ball speeds and powerful, solid sensation at impact.
A slightly larger, more playable footprint than its predecessor the CLK.
“The CORTECH Chamber is very effective on the fairway woods and hybrids as it does such a good job of lowering the sweet spot – maintaining ball speeds when you have to pinch one from a tight fairway.”
- Chris Voshall, Mizuno Club Engineer
FEATURES:
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CORTECH CHAMBER
The missing piece: Mizuno’s CORTECH Chamber encases a dense stainless-steel weight with elastomeric TPU – taking stress from the clubface and creating an additional energy source. At the same time locating weight closer to the clubface to reduce spin rates. While contributing to a more solid, powerful sensation at impact.
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WAFFLE CROWN AND THICK SOLE WEIGHT
Engineered to create a low sweet spot and deep centre of gravity, for high stable launch and efficient spin rates.
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HIGH ENERGY MAS1C STEEL FACE
Reworked with a new multi-thickness design – made possible through the face support of Mizuno’s CORTECH Chamber.
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QUICK SWITCH HOSEL
4 degrees of adjustability.
HEADCOVER INCLUDED
Yes
STANDARD GRIP
Lamkin ST Hybrid 360
WARRANTY
1 Year Manufacturer’s Warranty