The 2026 model PRGR 01 Iron has been renewed as a flagship model, offering both improved playability and a better feel.
I would like to review what kind of evolution the new 01 Iron has undergone.
PRGR 01 Iron
Test Club: 7-iron, Loft 32°
Shaft: MODUS 115 (S)
The PRGR 01 Iron has been known in Japan for its high-precision performance across all previous models, and on the Japan Tour, professional golfer Tomoharu Otsuki favors it for its excellent control.
The 2026 model 01IRON aligns the impact point with the center of gravity that users envision, enhancing shot accuracy, while also thickening the striking area to provide a softer feel.
Furthermore, the 01IRON has been improved with a shorter face length and a straighter leading edge.
When actually hitting it, I felt a solid impact and an ease in achieving high-spin trajectories.
The 01 Iron is more playable than its sibling model, the 02 Iron, and is designed for intermediate to advanced players, but I felt it is not particularly difficult to use and has a moderate level of forgiveness.
In Japan, there is also a great campaign where you can get one club free if you custom-order a set of six irons from this series, so if you are interested, be sure to check it out.
Features of 01 IRON
[Half-Moon Sole Design]
By varying the amount of material removed on the leading side of the sole for each club number, it has become possible to achieve stable ball contact that doesn't easily dig in at the leading edge and has good release across all club numbers.
[Power Impact Cavity Design]
By making the impact area thicker than the previous model, it achieves a more solid and substantial feel.
[Center of Gravity Design to Improve Maneuverability]
The center of gravity is positioned slightly towards the heel from the center to align with the striking point of athlete golfers.
Design and Feel
When you address a 01 iron, it has a compact shape that suggests a high level of maneuverability, but the blade has an appropriate thickness, giving a forgiving design. In actual play, it has a solid feel with some softness, and personally, I felt a feel close to Yamaha's tour model. The face length is shorter than the previous model, resulting in an even straighter leading edge. The connection from the neck to the face has been given more volume, improving its appearance so it is less likely to hook. Please, give it a try!
