The F-series, performance fins that are specifically designed for tight pocket surfing. FCS's Inside Foil Technology provides more acceleration through turns and allows tighter turns in the pocket without losing speed.
Great fins for larger surfers. Tryed 4 sets of fins in my JS Monsta X and was just about to get rid of the board when i tried the fg-7 fins and they change the board into an almost magic board. Heaps of drive and great release of the top.