Greenough 4A Volan
The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard.
The Fin
The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard. The 4-A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is due to it's all-around and well-balanced performance. Our Volan fins are fine-tuned with precision foils as well as proper flex. The Volan panels are meticulously hand-laid and templated ensuring optimal weave orientation and superior strength, with flex coming more from the body rather than just the tip. This enhances speed and projection off the bottom and through turns, making our Volan fins a pinnacle of the highest performance flex characteristics.
Form | Medium profile, full base coupled with a tapering & moderately flexible tip
Function | A fin that will hold when you need it to and release when the time is right
Feel | Neutral-positive, perfectly-balanced, a fin that will drive off the bottom, and have an acute responsiveness through arcing turns
Overall | Versatile - designed for all board shapes and surf conditions
Specifications
The Designer
George Greenough
Santa Barbara, California
Widely considered the father of the modern high-performance fin. His designs revolutionized how surfers think about flex, rake, and hydrodynamic flow. The Greenough 4A Volan is the culmination of decades of refinement — a fin that balances drive, hold, and release in a way that feels intuitive in every condition.
Greenough 4A Volan
The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard.