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Free domestic shipping on orders over $100.
excluding surfboards, bags, wetsuits, and art.

True Ames Greenough 4A


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  • 40243237290069
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  • Free domestic shipping on orders over $100. Free returns.
  • In stock. Ships within 1 business day (often same day).

There is a reason this is the most iconic, functional and versatile single fin works on just about anything! The Greenough 4-A has been our bread and butter for close to 40 years now, and is still the most popular single fin design there is.

A truly well-balanced fin...the full base coupled with the tapering, moderately flexible tip provides a solid amount of drive off the bottom, and an acute responsiveness through arcing turns. Designed for both speed generation and spending time surfing in the pocket, the 4-A is a fin that will hold when you need it to and release when the time is right. A fin that can do it all, throw one in your board and feel the success!

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