Greenough 4A 10" Purple Size:10" wider boards in the 6’8”

wider boards in the 6’8” – 8

After making the Keeper for over a decade

sustainability

but reduced the area through the center of the fin to increase responsiveness

is a must-have and pre-requisite for any surfer and cinephile alike

Greenough 4A 10" Purple Size:10" wider boards in the 6’8”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