From the moment you throw on the FCS H-3 Nexus large tri fin set, you"ll realize the H-3 Nexus is something special. Whether your surfing tight in the pocket or carving on the open face, you can surf confidently knowing all the elements of the FCS H-3 are working in synergy to deliver the ultimate advantage, more speed. The performance of the H-3 Nexus is seamless; yet quite deliberate in the way it feels. The FCS H-3 NEXUS features TRICOIL technology, a dynamic flex pattern that effectively stores and releases energy as the surfer transitions from one turn into the next. This transition between turns is where most surfers struggle to maintain speed. FCS has solved this problem by designing the H-3 Nexus, a fin with a highly efficient template, material stability, minimal drag characteristics, and above all, unparalleled flex properties!