Greenough 4A Longboard Fin 7" - Black Carbon / Glass - Exterior Seam Detail: Power

- Exterior Seam Detail: Power Seam

Sun Cure® is fiberfilled for strength and workability

• High degree of sweep angle provides exceptional control off the bottom and when carving on the open face

- Heavy duty YKK coil zipper for durability

so you won’t even notice them there

Greenough 4A Longboard Fin 7" - Black Carbon / Glass - Exterior Seam Detail: PowerThere 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