True Ames Fins 8.5" Greenough 4A Fin - Green

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True Ames

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Family Owned Since 1980. Online since 1999.



Amidst his wind generators, blue ocean boats, and camera housings, George Greenough had enough energy to revolutionize fin design with the True Ames Fins Greenough 4A Fin. The full base coupled with the tapering, moderately flexible tip creates a balance that transcends and complements so many aspects of surfing. Of course a unique understanding of his aquatic fish friends is the foundation here. Install the 4-A on any performance surf vehicle and you will find instant bliss.

Product Features

  • Use the smaller sizes (7" - 9") for a single fin or 2+1
  • Height: 8.5" / 216 mm
  • Base: 6.5" / 135 mm
  • Area: 32.83" ² / 212 cm ²


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Returns are easy! We understand that in some situations returns or exchanges may be necessary. We also want you to be stoked on your purchase. If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order. Items must be in new condition with original tags and packaging.

Please make sure your wetsuit fits before taking it in the water. We are not able to take returns or exchanges on used wetsuits.

Click here for our full Return Policy