FCS II Performer PC Thruster Fins - Black   Overview Designed for a balance of speed, flow & response. Well proportioned template with Inside Foil Technology (IFT). Ideal for surfers who want a reliable ‘All Round’ fin delivering a combination of speed and maneuverability with flow between turns.   Ideal Conditions 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 & response.