GOLF.com: Mizuno's JPX One Driver Proves It's Far More Than an Irons Brand

Mizuno Steps Beyond Its Iron-Forging Legacy

For decades, Mizuno has been synonymous with forged irons. But in 2026, the brand is making a compelling case that it belongs in every slot of the bag. GOLF.com's Jake Morrow visited Mizuno's newly opened R&D and fitting center, "The Foundry," near Atlanta, for a full-bag evaluation centered on the new JPX One metal woods.

NANOALLOY: A First in Golf Driver Engineering

The headline innovation is the NANOALLOY face technology, co-developed with materials specialist Toray. Unlike conventional titanium faces that operate on a spring-like trampoline effect, NANOALLOY dynamically alters its elasticity at impact—compressing alongside the golf ball to store and release more energy. The result is Mizuno's thinnest-ever titanium face construction and a 15%+ expansion of the high-speed rebound zone (CORAREA).

Two models are available: the JPX One (larger footprint, straighter bias) and the JPX One Select (compact, tour-preferred shape with a neutral-to-fade flight). Both conform to CT and smash factor regulations while delivering what Mizuno claims are best-in-class ball speeds.

Sound, Feel, and On-Course Performance

Morrow describes the sound as "VERY loud"—but in a satisfying way, likening it to a Mizuno composite baseball bat rather than the harsh, high-pitched crack common to many distance drivers. Forgiveness was another standout. After a 15-minute fitting session, Morrow landed on a JPX One 10.5° with a Fujikura Ventus TR Blue Velocore shaft, lofted down on the sleeve.

Strokeslab's Take

For golfers struggling with SG: Off the Tee metrics, a driver that combines genuine feel with competitive ball speed is rare. Mizuno's NANOALLOY technology is worth tracking—especially if you've previously dismissed them as an irons-only brand.