FCS II Sally Fitzgibbons Tri Surfboard Fins - Medium/Dusty PinkSally Fitzgibbon's 'SF' signature fin. Ideal for beach breaks. Overview Sally Fitzgibbon's signature fin. The smaller centre fin provides exceptional tail release. Ideal for beach breaks. Ideal Conditions Hollow steep waves, punchy beach breaks. Board Types Designed to fit the FCS II Fin System. Performance boards with shallow concave and moderate to low rocker. Fin Family Reactor: Find Speed. Speed, tight turns & snaps.