FCS II H4 PC Carbon Tri-Fin Set • 2025The FCS II H4 PC Carbon Tri Fin Set looks and surfs different to any other fin. Precision Swiss engineering matched with a highly evolved template provides an unprecedented level of control and predictability at high speeds. Radically different side and center fin templates create a powerful fin set with ultimate speed and drive. Ideal for a wide range of conditions, particularly good in critical overhead waves. Designed to fit the FCS II Fin System.