evo.com | FCS Fins > The FCS FK-2 PC Fish Keel Twin Fin Set works best with retro dual fin getups for a classic maneuverable feel. Performance Core Performance Core (PC) material and construction is designed to deliver the feeling of a traditional fiberglass fin with the added performance of reduced weight. The RTM (Resin Transfer Moulding) process produces a lightweight fin with remarkable flex, a smooth feel and an impressive aesthetic. Fin Specs Base: 7.01" / Depth: 4.49" / Area: 22.78in^2 / Sweep: 39.2deg 2 Fins Less Area and More Flex Than Traditional Keel Designs for More Maneuverability Designed for Retro Twin Fin Setups | FCS FK-2 PC Fish Keel Twin Fin Set 2024 - Medium