Mizuno JPX-850 Irons

JPX-850 Iron Set

The Longest Iron in Golf.

The breakthroughs in distance and ball speed of the JPX-850 are achieved through Mizuno’s Power Frame design, which greatly increases the rebound area of the clubface. In addition, the Power Frame positions weight in the extreme corners of the club head to increase stability on off-center shots, maximizing forgiveness and consistent distance.

Equally as important, the innovative Power Frame design ensures ball speeds are consistently high across the entire clubface and that the high COR is not created at the expense of feel or control. The JPX-850 delivers more distance, with more solid feel than any other iron in the game.

Key Technology

• Power Frame Distance: Increases rebound area for maximum distance.
• Power Frame Forgiveness: Weight is strategically placed in the four corners of the cavity to maximize forgiveness.
• Dual Relief Zone Sole: Ideal turf interaction for solid ball striking in all course conditions.

Standard Steel Shaft: True Temper XP 105 – R300, S300
Standard Graphite Shaft: Orochi Graphite
Standard Grip: Mizuno M-31 360 .58 Round

“Simply increasing ball speed is not our goal - making it happen within a manageable head size is the real challenge. With the Power Frame we were able to take ball speeds to a completely different level - all while keeping it hand in hand with a nice feel and a level of workability.”
-Tetsuya Kanayama, Senior R&D Team Member