F-series. A performance fin that is specifically designed for tight pocket surfing. While the inside foil technology provides more accelaration through turns it also allows you to shorten the arc of your turns(allowing tighter turns in the pocket without losinf speed). FG-3 Base: 109mm Depth: 112mm Area: 9172mm FG-5 Base: 111mm Depth: 115mm Area: 9525mm FG-7 Base: 115mm Depth: 119 Area: 10137mm
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