JS Hydroglass FCS II Twin Fin Set Brand_Sun Bum offering smooth rail to rail

offering smooth rail to rail transitions for high-performance surfing

This relaxed

Stable 5-strut performance

Pushing the boundaries of what’s possible

JS Hydroglass FCS II Twin Fin Set Brand_Sun Bum offering smooth rail to railFrom JS Built specifically for our Black Baron and Big Baron. It's high area makes it able to be pushed hard through turns, with a wide base and full tip to give hold and drive. Available in FCSII and Single Tab. Our HydroGlass fins are made with polyester resin and 34 layers of glass. This construction is great for generating speed and providing drive. The consistent flex allows for smooth rail to rail surfing during turns without losing speed. Our