Best SUP Center Fins | Longboard Box

The Performance 9″ Thermotech is a versatile, all-around longboard fin. It can be used as a center fin or as a 2+1 with side bites. Made in Huntington Beach, it offers consistent flex for smooth turns and is lighter and stronger with Futures Truss Base. This large longboard fin belongs to the Performance template category and is made with Thermotech construction.

The Glass Flex fin by FCS II is a versatile choice for racing, flat water, and surf. Its streamlined design offers maneuverability, with a seamless leading edge that quickly sheds weed. The GF material is ideal for beginners, helping them maintain speed and acceleration. The FCS II Tool-Less System allows for easy fin adjustments and quick installation without needing a fin plate and screw. This fin can be used with standard long board boxes.

The Captain Fin Pivot 10.25, crafted by Tyler Warren, harmonizes vintage pivot fin design with contemporary construction and rake. This fusion delivers faster, more responsive turns, offering a timeless touch to traditional logging techniques. The upright pivot fin has an area of 52.64″, height of 10.25″, and a base of 8.6”.