Surfboard Fins by FCS The FCS II Single PG Single Fin is a high performance glass fin machine cut from solid fiberglass layers to ensure a stiff and durable construction. Trusted by professional surfers, this fin maintains its flex integrity even under immense force and remains reliable in the most extreme surfing conditions. Its low sweep rake design allows for tight, controlled turns, making it an ideal choice for performance single fins and bonzer models. Designed to fit the FCS II fin system, it offers a simple and stable setup for riders seeking precision and power on open face waves. • Performance Glass (PG) fins • Machine cut from layers of solid fiberglass • Stiff construction widely used by pro level surfers • Maintains flex integrity under immense force • Reliable in extreme conditions and situations • Low sweep rake allows for tight controlled turns • Ideal for performance single fins and bonzer models