FCS II Matt Biolos PC Carbon Tri-Fin SetThe FCS II Matt Biolos PC Carbon Tri Fin Set features a wide base, curved trailing edge and a tapered tip. This fin is primarily geared for performance power surfing. The bottom half of the fin produces exceptional power and drive, allowing surfers to push hard through turns while maintain a feeling of stability in critical situations. The tip, which narrows significantly from halfway up the fin, offers the freedom and agility to turn abruptly with