Sally Fitzgibbons Thruster Medium Tiller fin The F4 Alpha is a

The F4 Alpha is a small size Balanced fin with a Ride Number of 5

Rainbow Fin Company has been a leading manufacturer of performance fins

Children under 6 months of age: please consult with a doctor before use

100% Marine Grade Stainless Steel Swivels

” says Glen De Witt

Sally Fitzgibbons Thruster Medium Tiller fin The F4 Alpha is aSally 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. Performance Core Performance