Single Tab Twin Tab Christenson Keel HC $132.97 Twin Tab twin-tab Christenson Keel HC - Smoke - Twin Tab Twin Tab single-tab Christenson Keel HC - Smoke - Single Tab Single Tab SMOKE / L $132.97 Add to cart PRODUCT DETAILS Chris Christenson takes us back in his time machine with this classic keel fin design. The Christenson Keel HC is a honeycomb template that's a touch more upright than a traditional keel making them more versatile for down the line speed and control, which will complement your retro twin fin fish. Maneuverability: Responsive Balanced Drive An updated slightly upright keel for more control in a retro twin. Compatibility: Compatible with FCS, FCS II, Captain Fin Snap-In fin systems using the provided screws. Construction: Honeycomb Flex: Medium