FCS II Sharpeye Fins

These fins are designed for high-performance surfing. Because of their flat inside foil and stiffer flex pattern, they excel when you need immediate response and speed in critical, steeper sections of a wave.

The AirCore construction uses a lightweight foam core wrapped in carbon tissue. This reduces the overall weight of the fin while increasing stiffness, which translates to a more direct, responsive feel under your feet compared to standard fiberglass fins.

Yes, these are designed specifically for the FCS II system. They feature a tool-less installation process, allowing you to click them in and out of your board without needing any screws or plates.

The Large size is intended for surfers weighing between 75kg and 90kg (165-200 lbs). If you are outside of this weight range, you may find the fins feel either too stiff or too loose, so it is best to stick to the size that matches your weight class.

The flat inside face is designed for speed and quick direction changes. It allows water to flow cleanly across the fin, providing a very lively, responsive sensation that makes it easier to initiate turns quickly.