FCS Fatboy Longboard Fin

The Fatboy is designed for surfers who want a blend of traditional nose riding and modern on-rail performance. Its unique shape helps you hold the tail in the water during turns while providing the stability needed for extended time on the nose.

Yes, it is compatible with all standard longboard fin boxes. Because it uses the FCS II tool-less system, you can slide it in and lock it down without needing a screwdriver or a fin plate.

That bulbous tip is designed to increase surface area at the top of the fin, which creates extra hold. This keeps your tail from sliding out during aggressive turns or when you are positioned far forward on the board.

While the stiff fiberglass construction is built for durability and maintaining integrity under force, it performs well across a variety of conditions. It provides a reliable, predictable feel that works just as effectively in smaller, mushier waves as it does in punchier surf.

Yes, the tool-less system is specifically designed for mid-surf adjustments. You can easily unlock, slide, and re-secure the fin to fine-tune your board's pivot point without needing to head back to the beach.