The John John (M) Techflex signature fin is a medium sized Speed Control fin with a Ride Number of 4.0.
It was designed by JJF to be a larger, more drivey version of the F4 template, with additional base and rake. The Techflex construction and flat foil give this fin a stable feel, making it ideal for controlling speed in more powerful waves. For John John, this is his weapon of choice in all conditions.
| Area | 14.98 | 14.98 |
| Height | 4.56 | 4.56 |
| Base | 4.45 | 4.45 |
| Foil | FLAT | SYMM |