Futures SB1 Thermotech Side Bites Fin SetThe Futures Fins SB1 Thermotech Side Bites Fin Set will add stability to your longboard, improving drive and hold on the face of the wave. 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. Sold as a pair, these fins are built with 4 cant angle. Fin Size Detail Fin Height Base Area Foil Sides 3. 57" 3. 91" 10. 77" Flat