The new JPX921 Series of irons from Mizuno is made up of four distinct models designed to help golfers with four different swing types.
There’s the JPX921 Forged, which uses a steel-like material called chromoly that allows company engineers to make the clubface thinner in an effort to deliver faster ball speeds. Additional perimeter weighting with toe bias is added to create a stability frame to maximize results from off-center hits, while a wider, CNC back milled slot is included to enhance stability. As for looks, the club boasts the sleeker, compact profile that better players prefer, with a shorter blade length, a beveled trailing edge and reduced offset.
Next up is the JPX921 Tour, aka the Chosen One. Previous iterations of this club won four major championships from 2017-19, and this version is designed to fuse stability with precision just as effectively. Grain-flow forged from 1025E pure select mild carbon steel, it, too, employs the stability frame as well as increased thickness behind the impact zone. And the shorter irons feature a narrower sole for improved turf interaction, as a thicker cavity pad bolsters sound and feel.
The JPX921 Hot Metal also employs chromoly, to create additional energy from the clubface and increase distance. A Seamless Cup Face features a variable thickness sole that allows the leading edge to act as a hinge, generating greater flex in the process. In addition, three sound ribs are designed to produce a more solid sensation at impact, while extreme perimeter weighting works with the stability frame to provide greater consistency on mis-hits.
A Hot Metal Pro version of the JPX921 comes with a more compact profile and reduced offset.
In an effort to appeal to southpaws, Mizuno also is releasing a JPX921 Special Edition Leftie that is, in essence, a combination set with JPX921 Forged irons (3 and 4) and JPX921 Tour mid- and short-irons (6-GW).