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UPF 50+ sun protection
the Futures F4 Tri Fins are perfected for surfers that want to rip hard
Speed & tight turns
These fins pair well with boards that are designed for acceleration
The Aero Rack Pads are offered in two sizes to fit a range of crossbar circumferences
Greenough 4A 9" Quad Rear UPF 50+ sun protectionThere 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
