FCS II Hayden Shapes Fin

This set includes five fins, allowing you to choose between a thruster setup (three fins) for predictable, pivot-oriented surfing or a quad setup (four fins) for increased speed and hold on the rail. It gives you the flexibility to adapt your board's feel to different wave conditions.

The extended base increases the surface area at the bottom of the fin, which creates more drive and acceleration when you push through your bottom turns. It helps you generate speed more easily, especially in flatter or weaker sections of a wave.

The Medium size is generally recommended for surfers weighing between 65kg and 80kg (145lbs to 175lbs). If you are on the lighter or heavier end of that spectrum, you might consider sizing down or up to better match your board's volume and your personal riding style.

Aircore construction uses a lightweight, molded polyurethane foam core wrapped in fiberglass. This reduces the overall weight of the fin while maintaining a specific flex pattern, resulting in a more responsive and lively feel under your feet compared to solid fiberglass fins.

No, these are FCS II fins, which are designed for tool-less installation. You can simply click them into your FCS II fin boxes and remove them by hand, making it easy to swap setups at the beach.