Futures Performance Thermotech Single FinThe Futures Fins Performance Thermotech Single Fin, utilizes an all around template shape and can be used as a stand alone center fin, or combined with side bites to be used as a 2 + 1. Made in Huntington Beach, 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.