Compare surf fins

Up to three fins side by side, from the brands' own measurements. 3 boxes = a typical fin like it. More isn't better: it's what your board needs.

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What each row means

Drive: Speed and push out of turns and off the bottom. From the base: a longer base drives more.
Hold: How well the board stays connected to the wave face without sliding out. From the depth: a deeper fin holds more.
Pivot: How easily the board turns on the spot: more pivot is tighter, quicker turns; less is longer, drawn-out turns. From the sweep: a more upright fin pivots more.
Size: How much fin overall, compared with every size of the same setup. From the area.
Flex: Futures' own Ride Number (1–10) in five boxes, the number beside them: more boxes is springier and generates speed; fewer is stiffer, with more control. Flex counts most, but the number also counts rake and foil. The only row that isn't compared with other fins.

Tell us the fins you ride now and what they get wrong. The selector points you to the next step in about a minute.