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. A fin that can do it all, throw one in your board and feel the success!
SMALLER SIZES ( 7” - 9” ) Use the smaller sizes for a single fin or 2+1.
True Ames has been crafting the highest quality surfboard fins made from the best materials available for close to 40 years. We offer a wide variety of fins within our collection in order to support an array of wave riding vehicles. We pride ourselves in balancing a surfer and shaper driven design ethic with our commitment to innovation and production excellence. Our mission is simply to provide our customers with the best fins and performance money can buy.