Twin Tab
The Jeff McCallum Keel fin template has an elongated profile and sweep, with a wider base for smooth down the line speed and control. Designed by Jeff and made with high quality materials, this fin complements any retro twin fin fish.
Drive fin ideal for retro fish on fast walls.
Compatibility: Compatible with FCS, FCS II, Captain Fin Snap-In fin systems using the provided screws.
Construction: Fiberglass
Flex: Stiff