01A wider front surface.
Flatso 3.0 gives your hands the largest profile in the standard Flatso range.

SuperStroke / GRIP ROOM
The 1.38-inch-wide Flatso 3.0 is the fullest of the three standard Flatso profiles. Its pentagonal shape offers a broad contact surface, with Zenergy multi-zone texture and an enhanced SPYNE ridge.
The details that shape your grip
01Flatso 3.0 gives your hands the largest profile in the standard Flatso range.
Official SuperStroke photograph of this exact model. The native product gallery shows the available colors.
02 / Specifications
Manufacturer reference specifications. Choose your size and color in the product options above.
Manufacturer details| Size | Core | Nominal weight |
|---|---|---|
| Flatso 3.0Grip only; no CounterCore weight included | 0.580 in | 61 g |
Manufacturer nominal specifications for this exact Zenergy model. Verify packaging, shaft dimensions and fit before installation.
Weights are manufacturer nominal values and can vary. Core size describes the grip opening, not the finished outside diameter. Confirm shaft butt diameter and installation method before fitting.
03 / Find your feel
Match the 0.580-inch core to the shaft and build. The nominal grip weight is 61 g; changing grip weight can change how the putter head feels. Test the shape with your usual putting hold.
Back to optionsTry the shape and size with your usual putting hold. The paddle, back shape and diameter change how each hand contacts the grip. Choose the combination you find most comfortable; swing-grip hand-size measurements do not prescribe a putter grip size.
For woods & irons: grip calculatorTech-Port accepts an optional CounterCore weight, sold separately. A weight is not included with the grip. Check the exact accessory and model before combining add-ons.