The FCSII Connect Glass Flex longboard fin is a great innovation. The FCSII system allows you to set up your fins without using tools.
Compatible with 99% of fins.
The design is similar to the FCS Dolphin fins. The tip is narrow and the top of the fin is flexible.
Construction:
Glass Flex: This technology has been developed to produce the same flex and shape memory than fiberglass fins but with more flex on the tips than at the base.