FCS II Fins 6.5" Kai Sallas Longboard Fin

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Finding the sweet spot for all around longboarding, the FCS II Kai Sallas Fin provides superb maneuverability, drive and zippy down the line action. Hawaiian ripper Kai Sallas designed his signature fin with extra length at the base of the trailing edge to produce exceptional speed and reliable hold through turns and a taper to a narrow tip allowing for acute directional changes. With the ability to be used in modern single fin boards, adapted to SUP's or thrown into a hybrid, the Kai Sallas Fin offers a balance of user friendly fun and high performance excitement.

Unlike FCS II performance fin sets, FCS II single fins are designed to be used in existing FCS longboard boxes so there is no new box required. The corrosion resistant press fit connection has a unique rotating barrel that allows you the ability to quickly swap fins on the beach, tweak your fin position in the water, or easily trade with a friend for a few waves. With FCS II tool-less technology there is no more clumsy hardware to fumble with and you can spend your time paddling into clean peelers.


Performance Glass (PG) material characteristics and flex pattern are identical to traditional fibreglass fins offering a stiff base with subtle responsive tip flex, amazing aesthetics and proven durability. PG fins are the perfect transition fin for surfers moving from fixed fins to the convenience, accuracy and performance of FCS.

Tech Specs

  • Base: 4.80 in, 122 mm
  • Depth: 6.38 in, 162 mm
  • Area: 21.62 sq in, 13948 sq mm
  • Sweep: 31.2°

Product Features

  • Size: 6.5"
  • Fins in set: 1
  • Material: Performance Glass


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If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order.