See photos for fin base options.
Fits most production brands with an origin in windsurfing (example Starboard, Fanatic, Mistral, RRD and JP-Australia). This is the same fin box that’s found on many windsurfing boards and is wider and deeper.
SUP Race Fin – The SONIC SUP race fin is designed for blistering speed, enhanced flow and ultimate control especially in ocean and river conditions. The Sonic is highly recommended for beach/surf races and downwind SUP racing. The Sonic is best suited for advanced to professional stand up paddlers with a high cadence and has quickly become the fin of choice for many elite and professional SUP racers. Built in our ultralight Pro Carbon construction our fins are the lightest SUP race fins available.
The Sonic SUP race fin is designed to help you maneuver to connect bumps while downwinding, sprint faster on flat water and surf into the finish with speed and style. At only 18cm (7 in.) long and 214 cm² (33 in²) in area, the Sonic is the smallest and loosest feeling sup race fin we make, it frees up the tail of raceboards and encourages a dynamic, flowing and fast racing style. The combination of a race proven foil and progressive rake enable experienced paddlers take advantage of even the smallest of bumps which the ocean or river provides. This fast and loose feeling is ideal for elite riders with a high cadence who are in tune with ocean chop and currents. The Sonic has a 45° initial angle on the leading edge with progressively more curve, hence it is great at shedding weeds and trash, given it is short length then those paddling in shallow waters will also like this fin option.