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Mizuno ST-G 440 Golf Driver


The Mizuno ST-G 440 Golf Driver

Offering stability like no other, the ST-G 440cc is a compact driver head dynamite. With Mizuno's CORTECH Chamber technology, you can now enjoy consistent ball speeds over the entire face.

Cortech Chamber The Missing Piece

Encase a stainless steel weight and elastomeric TPU to reduce stress and spin rates on the clubface, while creating an additional energy source closer to the clubface for a more solid, impactful sensation!

Max Convergent Fast Track

Two weights can be adjusted for loftier, lower-spin settings for extreme ball control.

Compact 440CC Player Profile

A captivating, contemporary pear silhouette that fits immaculately in the outdoor environment.


The ST-G is equipped with a capably lightweight and quicker face material, achieving 9% greater tensile strength than SAT2041. Players noticed an improved 1.5 mph ball speed in Tour testing vs SAT2041.

Expanded Carbon Toe Wrap

An extendable carbon frame in the toe section creates opportunities to tailor shots with even greater precision!

Tour Tested for Sound

A robust and solid feel is the result of Mizuno's CORTECH Chamber combined with internal tuning ribs - in all its weight configurations.

Quick Switch Hosel

 4 degrees of adjustability to fine-tune address and trajectory.


Pickup available at Golf Tech UK

Usually ready in 5+ days


Product information


What happens if I can’t select the combination of head, shaft & grip I want?

Email us on hi@golftechuk.com or call 020 3995 5638 we would be more than happy to discuss and prepare a custom quote.

I am purchasing from outside of the UK, what happens with TAX / Customs duty?

All orders show and charge TAX / Duties at checkout so there will be no additional payment required to the courier. Goods will be delivered duties paid (DDP)

Do you offer advice prior to purchase if I am unsure which product to choose?

We understand and recommend trying / having a fitting prior to any purchase but should this not be possible our team will be more than happy to help you through any purchase. Either via email or on the phone.

I paid for Express shipping, why hasn't it shipped next day? 

Express shipping is the fastest possible shipping service, unfortunately it is not a way of getting your custom order built faster.

What if I can’t find an option I want on a drop-down menu?

If you can’t find a grip or shaft that you would like to order then please do reach out to us or place an order and leave a note on the order. One of our team will be happy to help you through the process. 

Golf Tech UK - Technology in Golf

Golf Tech UK is a supplier of high quality golf equipment. Golf is about performance and the brands we sell will help you achieve your highest performance on the course. The Golf Tech UK team has a long history with the game of golf as well as a deep knowledge and understanding of the technology and products on offer.

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