Become a FIN+ Member
FIN+ is a membership program allowing you to rent fins
as much as you want, for as long as you want.
No contracts, no commitments.

8” greenough 4a single fin black
True Ames
There 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 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.
Single Fin - Single Fin