111 products
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FCS II Mayhem Driver PC Carbon Tri Fins White MediumFCS II Mayhem Driver PC Carbon Tri Fins White Medium- Regular price
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$ 155.00 USD - Regular price
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$ 155.00 USD - Sale price
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$ 155.00 USD
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FCS II Hayden Shapes PC AirCore Medium White Quad Rear FinsFCS II Hayden Shapes PC AirCore Medium White Quad Rear Fins- Regular price
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$ 92.00 USD - Regular price
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$ 92.00 USD - Sale price
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$ 92.00 USD
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FCS II Hayden Shapes PC AirCore Medium White Tri FinsFCS II Hayden Shapes PC AirCore Medium White Tri Fins- Regular price
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$ 170.00 USD - Regular price
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$ 170.00 USD - Sale price
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$ 170.00 USD
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Finjak Tool Free Fin AdjusterFinjak Tool Free Fin Adjuster- Regular price
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$ 12.95 USD - Regular price
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$ 12.95 USD - Sale price
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$ 12.95 USD
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True Ames Side Bite 4.0 - FCS Compatible (Hexcore)True Ames Side Bite 4.0 - FCS Compatible (Hexcore)- Regular price
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$ 70.00 USD - Regular price
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$ 70.00 USD - Sale price
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$ 70.00 USD
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True Ames 8.5" Greenough 4A - BlueTrue Ames 8.5" Greenough 4A - Blue- Regular price
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$ 96.95 USD - Regular price
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$ 96.95 USD - Sale price
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$ 96.95 USD
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True Ames 9.75" Greenough 4A - KelpTrue Ames 9.75" Greenough 4A - Kelp- Regular price
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$ 104.95 USD - Regular price
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$ 104.95 USD - Sale price
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$ 104.95 USD
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True Ames 3.3" Futures Trailer Single Fin - SmokeTrue Ames 3.3" Futures Trailer Single Fin - Smoke- Regular price
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$ 39.95 USD - Regular price
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$ 39.95 USD - Sale price
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$ 39.95 USD
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True Ames 2.5" FCS Trailer Single Fin - SmokeTrue Ames 2.5" FCS Trailer Single Fin - Smoke- Regular price
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$ 39.95 USD - Regular price
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$ 39.95 USD - Sale price
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$ 39.95 USD
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True Ames 3.25" FCS Sidebites - Smoke HexcoreTrue Ames 3.25" FCS Sidebites - Smoke Hexcore- Regular price
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$ 70.00 USD - Regular price
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$ 70.00 USD - Sale price
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$ 70.00 USD
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True Ames 6.5" Greenough 4A - PurpleTrue Ames 6.5" Greenough 4A - Purple- Regular price
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$ 84.95 USD - Regular price
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$ 84.95 USD - Sale price
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$ 84.95 USD
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True Ames 3.25" Sidebites Futures Compatible- FiberglassTrue Ames 3.25" Sidebites Futures Compatible- Fiberglass- Regular price
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$ 74.95 USD - Regular price
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$ 74.95 USD - Sale price
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$ 74.95 USD
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NVS Surfboard Fins - Nautilus Twin+1 - Apex - Click TabNVS Surfboard Fins - Nautilus Twin+1 - Apex - Click Tab- Regular price
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$ 124.95 USD - Regular price
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$ 124.95 USD - Sale price
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$ 124.95 USD
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Island Fin Design 8.5" Voyager - Red PalakaIsland Fin Design 8.5" Voyager - Red Palaka- Regular price
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$ 103.95 USD - Regular price
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$ 103.95 USD - Sale price
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$ 103.95 USD
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Island Fin Design - 9.0" Islander Fin - Clear/White StripeIsland Fin Design - 9.0" Islander Fin - Clear/White Stripe- Regular price
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$ 99.95 USD - Regular price
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$ 99.95 USD - Sale price
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$ 99.95 USD
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Island Fin Design - 9.0" Leeward Pivot Fin - Orchid BlueIsland Fin Design - 9.0" Leeward Pivot Fin - Orchid Blue- Regular price
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$ 103.95 USD - Regular price
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$ 103.95 USD - Sale price
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$ 103.95 USD
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True Ames 7" Greenough 4A - RedTrue Ames 7" Greenough 4A - Red- Regular price
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$ 87.95 USD - Regular price
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$ 87.95 USD - Sale price
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$ 87.95 USD
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True Ames Mandala FM Twinzer Fiberglass Fin - FCS/Futures/SmokeTrue Ames Mandala FM Twinzer Fiberglass Fin - FCS/Futures/Smoke- Regular price
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$ 139.95 USD - Regular price
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$ 139.95 USD - Sale price
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$ 139.95 USD
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Futures Fins - JS Thruster Fin Set -(Large) SmokeFutures Fins - JS Thruster Fin Set -(Large) Smoke- Regular price
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$ 144.95 USD - Regular price
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$ 144.95 USD - Sale price
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$ 144.95 USD
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Futures Fins Jordy Signature (Medium) | White/RedFutures Fins Jordy Signature (Medium) | White/Red- Regular price
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$ 145.00 USD - Regular price
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$ 145.00 USD - Sale price
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$ 145.00 USD
How to Choose Surfboard Fins
Start by confirming your board’s fin-box system and compatible configuration. FCS and Futures fins are not interchangeable, while many longboards use a traditional center fin box with optional side bites.
Fin Configuration and Board Type
- Thruster: Balanced control, drive and maneuverability.
- Quad: Fast and responsive, with added hold through turns.
- Twin fin: Loose, fast and well suited to many fish and retro shapes.
- Single fin: Smooth, flowing performance for longboards and traditional shapes.
- 2+1: A versatile longboard setup using a center fin with smaller side fins.
Fin Size and Construction
Fin size should reflect your weight, board design, wave conditions and preferred feel. Larger fins generally provide more hold and stability, while smaller fins can feel looser and easier to turn. Fin template, flex and construction also affect speed, control and responsiveness.
Still unsure which fins fit your board? Call Seaside Surf Shop at 503-717-1110 or use our Contact Us page.

