FCS PC-2 Performance Core Surfboard Tri Fin Set - Green/Clear Color - GREEN/CLEAR Tri Fin Set - (3) fin set PC-2 Fin Stats: Base - 4.26" , 108.0 mm; Depth - 4.22" , 107.0 mm; Area - 13.03 sq. in. , 8405 mm2; Sweep - 32.3 Performance Core Fin: Performance Core (PC) material and construction is designed to deliver the feeling of a traditional glass fin with the added performance of reduced weight. The result is a lightweight fin with remarkable flex, a smooth feel and a n impressive aesthetic.