Greenough 4-A 9" (Kelp) - True Ames tri fin or ahybrid

or ahybrid

Blade Length

I would recommend this board for riders who want the most out of their surfboard in a one board quiver for when the waves are ok to good

An all time favorite

Greenough 4-A 9" (Kelp) - True Ames tri fin or ahybridThere 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