THERMOTECH THRUSTER Product Information Thermo tech Small (47kg - 70kg) Side Fins - H 4.37 B 4.22 A 14.22 Centre Fin - H 4.37 B 4.22 A 14.22 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. Product Information Thermo tech Medium (65kg - 88kg) Side Fins - H 4.56 B 4.35 A 15.12 Centre Fin - H 4.56 B 4.35 A 15.12 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. Product Information Thermo tech SMALL 47-70KGS, MEDIUM 65-88KGS & LARGE 80+KGS Side Fins - H 4.64 B 4.47 A 15.90 Centre Fin - H 4.64 B 4.47 A 15.90 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.