True Ames Greenough 4A 8.5" Volan Core flexing and twisting back and

flexing and twisting back and forth creating propulsion based on direction and angle of attack

Core Features

Fantastic for finners

3mm cedar stringer

True Ames Greenough 4A 8.5" Volan Core flexing and twisting back andThere is a reason this is the most iconic, functional and versatile single fin available it 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