What you need to know: PureFrame and MainFrame are the two most important terms in regards to the 2023 Srixon ZX Mk II family of irons. The players iron ZX7 Mk II features PureFrame: an 80-percent thicker portion of 1020 carbon steel forged behind the sweet spot in the body of the iron for soft-yet-solid-feeling impact. Z-Forged has PureFrame as well. The rest of the lineup features second-generation MainFrame technology — a variable thickness pattern of grooves, channels, and cavities carefully milled into the back of the clubface for maximum ball speed-boosting flex and greater forgiveness.

What’s new, key technology

MainFrame v2: Developed with an Automated Intelligence process, flex-maximizing variable thickness pattern of grooves, channels, and cavities carefully milled into the backside of ZX4, ZX5, and ZX Mk II Utility Iron faces for high ball speeds.

Not only does MainFrame boost COR, but it also repositions mass away from the face and into the toe and sole for a lower CG for easier launch, more consistency, and forgiveness.

PureFrame: Reducing unwanted vibrations at impact, PureFrame enhances feel in ZX7 Mk II irons. The 80-percent thicker portion of 1020 carbon steel is strategically placed behind each iron’s sweet spot.

Tour V.T. Sole: Proprietary sole widths, bounce angles, and notches in the heel and toe of the club aid clean contact from a variety of lies.

Progressive Grooves: Laser milling between each groove for enhanced friction. 3i-7i feature wide grooves. The 8i-AW have deeper, closer set grooves that cut through grass and debris to enhanced spin on approach shots.

Forged Multi-Piece Construction: ZX Mk II Utility is equipped with a forged SUP10 face for maximum face-flexing at impact. A forged 1020 carbon steel body offers softer feel thanks to vibration dampening.

Also notable: New for Mk II, every ZX Iron model now features the same topline thickness, so uniform combo sets are a possibility.

Additional product photos

Z-Forged

ZX7 Mk II

ZX5 Mk II

ZX Utility

What Srixon says

“The technologies driving the exceptional performance of the ZX Mk II Irons are really exciting to launch and get into golfer’s hands,” said Brian Schielke, General Manager of Srixon. “Longer distances, improved feel, more control, and greater consistency are seen throughout each new iron set, and they provide a seamless transition for building a combo set.”

“While we’ve improved these irons in so many ways over the first generation of ZX Irons, we’ve also kept the sleek looks, pure feel, and core DNA of Srixon Irons that golfers have come to expect,” Schielke said.

Price, specs, availability

Price

• ZX7 Mk II Irons ($1,199.99, 7-piece steel)
• ZX5 Mk II Irons ($1,199.99, 7-piece steel)
• ZX4 Mk II Irons ($1,199.99, 7-piece steel)
• Z-Forged II Irons ($1,199.99, 7-piece steel)
• ZX Mk II Utility Irons ($239.99)

At retail: January 20, 2023, April 19, 2023 (Z-Forged II)

Stock shafts

• Z-Forged: Nippon N.S. PRO Modus3 Tour 120
• ZX7: Nippon N.S. PRO Modus3 Tour 120
• ZX4, ZX5: KBS Tour Lite
• UST Mamiya’s Recoil Dart shafts now come standard as a graphite offering for ZX5, ZX4, and ZX Utility Irons.

Stock grip: Golf Pride Tour Velvet