FCS M3 Fin Glass Flex

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  • FCS Glass Flex m-3 Fin
  • FCS M3 Fin Glass Flex
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FCS M3 Fin Glass Flex

FCS design, not FCSII.  Will fit into FCSII boxes but you need to use the grub screws, not the snap in system.

Fast and smooth, the FCS M3 GF Tri Fins get you down the line with better hold and more squirt through turns. The M-Series has a flexible tip for forgiveness and control at high speed. The Inside Foil Technology offers superior drive and hold. Glass Flex offers the flex pattern molded off a hand-foiled fiberglass fin and the ability to mold highly technical computer generated foils accurately.


Injection molding process ensures geometric accuracy and provides a reliable and consistent feel. These fins are ideal for novice surfers because the relaxed (subtle) flex of these fins can be engaged with minimal effort, and as the flex returns to a neutral position the fin produces a whip-like effect that propels the board forward, and helps to maintain speed and acceleration.

Base - 4.28"

Depth - 4.41"

Area- 14.22 Sq in

Sweep - 31 deg


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1 Review

  • 3
    FCS M3 fins

    Fins fit very loosely in the boxes. Should be snug. Disappointed

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