The F4 Thermotech is a small sized thruster in the Neutral template category. Made in Huntington Beach, the Thermotech product line does 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.
- Template Category | Neutral (balanced, all-around)
- Construction | Thermotech
- Size | Small (105 – 155 lbs)
- Sold as a pair (2)
| Side Fins | Center Fin | |
| Area | 14.22 | 14.22 |
| Height | 4.37 | 4.37 |
| Base | 4.22 | 4.22 |
| Foil | FLAT | SYMM |