F2 Thermotech Thermotech fins do not have the traditional plastic feel of a composite fin. Instead they have a consistent flex that creates drive and release through turns. Thermotech fins come with the Futures Truss Base, making them lighter and stronger.
| Area | 12.56 |
| Height | 4.15 |
| Base | 3.97 |
| Foil |
FLAT |
F4 Thermotech Thermotech fins do not have the traditional plastic feel of a composite fin. Instead they have a consistent flex that creates drive and release through turns. Thermotech fins come with the Futures Truss Base, making them lighter and stronger.
| Area | 14.22 |
| Height | 4.37 |
| Base | 4.22 |
| Foil | FLAT |