FCS II Skindog Longboard PC + Aircore Single FinThe FCS II Skindog Longboard PC + Aircore Single Fin, available in 7" and the new 8" size, is designed to deliver a powerful yet fluid feel, perfect for harnessing speed and control in bigger surf. Paired with the Skindog Side Bytes, these fins create a 2 + 1 setup that enhances drive, stability, and maneuverability. The side bytes add speed and control, allowing surfers to handle critical sections and maintain stability through sweeping turns.