FCS II Hayden Shapes Performance Core Carbon 5-Fin Surfboard Fins - Large/WhiteThe FCS II Hayden Shapes PC Carbon Large Tri Quad Fin Set is perfectly suited to the HS Hypto Krypto and other higher volume board models with lower rocker. Overview: FCS II HS Shaper Fin designed by Hayden Cox from Hayden Shapes. Perfectly suited to the HS Hypto Krypto and other higher volume board models with lower rocker. This fin produces exceptional speed when driving off the bottom, especially on longer open face waves. Ideal Conditions: A wide