The FCS II Modern Keel Twin Fin has an upright keel template designed for traditional fish shapes.

Performance Glass (PG) fins are machine cut from layers of solid fiberglass. These fins are stiff and widely used by pro-level surfers because of their ability to maintain flex under immense force, in the most extreme of conditions, and situations.

• Lower sweep (rake) than most conventional keel fins

• Pivots in a tight radius

• High area and depth for control when pushed hard

• Maintains speed through maneuvers

• Fits FCS II fin boxes

• One size

• Recommended for fish, funboards, and twin fin boards