Liquid Force has debuted new carbon surf fins that come standard on select shapes. But wait: you can put these high-performance fins on any older LF boards that use an FCS fin box. Available in three sizes. The Liquid Force LFX Carbon Honeycomb Surf Fins offer improved speed and added drive out of turns for a truly superior ride over a plastic fin. Upgrade your fins and get ready for more fun surfing the endless wave. | Liquid Force Carbon Honeycomb Surf Fin 4.0... 2 Fins | The House