FCS II Carver Performance Core Tri Surfboard Fins - XL/EucalyptusFCS II Carver PC Large Tri Fin Set Acid Black Overview Designed for powerful, drawn out turns with added hold. Elongated template with high degree of sweep provides exceptional hold off the bottom and when carving on the open face. Ideal for power surfers who like to push hard against their fins and draw out their turns. Ideal Conditions Open face, down the line waves, particularly good in point and reef breaks. Board Types Designed to fit the FCS II