TheFCS II Aipa Twin+1 Fin Set, designed by Hawaiian shaper Akila Aipa, redefines the classic theory of the twin-fin design and transforms it into a more high-performance mindset. The Aipa twin’s fiberglass material combined with a wide base and extra tall height gives this fin maximum drive, while the thinner tip offers release and spring off the top. This set performs great for lightweight surfers and pairs best with board designs featuring pulled in tails.