Srixon’s hollow ZX4 irons combine human and artificial intelligence
A forged HT1770 maraging steel face is the engine behind ZX4’s impressive speed, but instead of simply adding the material as-is, designers allowed a computer to refine the design through thousands of simulations.
The end result is a “mainframe” design that’s milled into the backside of each face. The intricate design consists of grooves, channels and cavities in a variable thickness pattern that expands the sweet spot and amplifies ball speed across the entire face structure. In addition to the face design, each iron features a hollow 431 steel cavity with high-density tungsten slugs situated in the toe section — long and mid irons — to increase launch.
Srixon ZX4 Iron Set
This ZX4 is the new face of forgiveness. Hollow for distance, and sharp at the address for game improvement playability without sacrifice.
HOLLOW FORGIVENESS
Hollow irons offer a sleek, narrow look along with the forgiveness you’d typically only expect from larger designs.
ZX4 Irons deliver an exceptionally good address profile while also boasting our most powerful forgiveness to date. It’s a game-changing combination that makes Srixon irons accessible to a whole new class of players that prefers game improvement equipment.
PERFORMANCE
- Extra Forgiveness
- Extra Distance
- Exceptional Feel
FEATURES
- Compact, Hollow Shaping
- Wide Sole
- Clean Address View
ZX4 IRONS
Features the widest sole, longest blade, and most offset in ZX family, but still offers a clean address view.
TECHNOLOGY
MAINFRAME
A milled pattern on the backside of ZX4's face maximizes COR for more ball speed and more distance on every shot.
HOLLOW DESIGN
ZX4's hollow design gives you enough forgiveness to strike the ball across the face while still enjoying high shots that fly straight and find their targets.
MULTI-PIECE CONSTRUCTION
Tungsten in the base of ZX4's long and mid irons (4i-7i) lowers its center of gravity for a higher launch. A forged HT1770 Steel face enhances speed and distance while a 431 Steel body absorbs vibration for a softer feel.
TOUR V.T. SOLE
V-shaped soles glide smoothly through the turf, even if you strike slightly behind the ball. ZX4 Irons also feature the resurgence of our popular sole notches.
PROGRESSIVE GROOVES
Grooves in the 8i through PW are sharper, narrower, and deeper for more spin and stopping power on approach shots into the green.
US 13758 
GB 11718 
CA 9548 
AU 8452 
IE 5765 
BR 3115 
NZ 1876 
SG 791 
