FIN MATERIAL PERFORMANCE CORE. FIN SIZE SMALL (55 - 70Kg / 120 - 155 Lbs). FIN SPECS Base: 4.37" 111.0mm, Depth: 4.37" 111.0mm, Area: 13.71"^2 / 8846mm^2, Sweep: 35.5 degrees, Foil: Flat. For lighter surfers looking for a fast and lively fin. Exception
The FCS system (Fin Control System) was designed by Brian A. Whitty in Elanora, Australia, and patented on November 7, 1995. It can be recognized by the 2 tabs on the fins which are designed to fit into a securing plug that attaches the fin to the board.