Greenough 4A 10" Black Camp Angled zipper opens the kit

Angled zipper opens the kit wide

sharp turns off the tail while delivering plenty of hold from the nose

7-barrel metal hinge

Take the game with you on your RV or boat adventures

Greenough 4A 10" Black Camp Angled zipper opens the kitThere 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