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By supplementing the formula with Thanaka
Redesigned molded Opti-Flex leash ends for maximum durability
Choose your Power Magnification & Color
No one wants to lose a fin
RB1 Longsleeve Springsuit
Greenough 4A 9.75" Color:Clear By supplementing the formula withThere 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
