FCS II Performer Glass Flex Quad Rear Fins Overview Balanced Performance: Designed for a balance of speed, flow, and response. Proportioned Template: Well-proportioned template with Inside Foil Technology (IFT). All-Round Use: Ideal for surfers who want a reliable ‘All Round’ fin delivering a combination of speed and maneuverability with flow between turns. Quad Rear Set: Includes two Quad Rear fins. Ideal Conditions Suitable for a wide range of conditions, from beach breaks to point breaks. Board Types Designed to fit the FCS II Fin System. Recommended for all board types. Fin Family Performer: Find Balance. A balance of speed, flow, and response. Surfboard Fins, Point Break, Find Balance, Finding Balance, Type Design, Surfboard, Quad, Foil, Turn Ons