All-Round Performance for Beginners – Engineered for a balanced blend of speed, flow, and response, offering a smooth and forgiving ride as you learn foundational surf movements Glass Flex Construction – Made of flexible, engineering-grade polymer that helps maintain speed and momentum when you're still mastering turns and maneuvers Easy Swap FCS II System – Installs effortlessly without screws, so you can experiment with fin setups or make quick changes as your skills improve Unlock confidence in your early surf sessions with the FCS II Performer Glass Flex Tri Fin Set. Crafted from Glass Flex polymer and featuring Inside Foil Technology (IFT), these fins strike the sweet spot between speed, flow, and responsiveness perfect for beginners stepping into tri fin setups. Whether you're learning wide open beach breaks or refining your turns on point waves, these fins support a smooth, forgiving ride that helps you progress faster. The FCS II system allows tool-free fin swaps, so you can upgrade or adjust with ease as your skills evolve.