The Performance Thermotech utilizes an all-around template shape and can be used as a stand-alone center fin, or combined with sidebites 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.