A wide range of conditions from beach breaks to point breaks, Ideally suited to smaller, weaker waves,Designed to fit the FCS II Fin System,Recommended for all board types including fish, funboard and twin fin boards,The flow of a traditional twin fish with the control of a performance quad.Performance Glass (PG) fins are machine cut from layers of solid fiberglass. These fins are stiff, and are widely used by pro level surfers because the integrity of the flex is maintained under immense force, and in the most extreme of conditions and situations.