From Tuna Fins to Wave Revolution

Born from George Greenough's obsession with nature's fastest swimmers, this fin changed longboarding forever. Inspired by the tail fins of tuna, it brought high-performance surfing to the traditional longboard world in the early '70s. Less drag, more speed, sharper turns—this is the design that moved surfers from the nose to the pocket and never looked back.

Features:

• Design: Semi-pivot template with reduced surface area for high-aspect ratio performance
• Heritage: Direct descendant of Greenough's revolutionary "Stage 4" tuna fin designs
• Performance: More maneuverable with faster down-the-line speed and less drag
• Versatility: Works great on all types of longboards
• Template: Upright nature with minimal rake, shaved for progressive surfing
• Construction: Solid fiberglass with flat matte finish

Ready to Pair This Legend with Your Next Ride?

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