single to double concave

The reason for this is that the Hot Curl is a historic example of the Shortboard revolution in Surfboards

A TIMELESS TRACTION PAD FIT FOR A LEGEND

Nexskin ankle seals that minimize flushing

Channel Islands Twin Fin Set FCS SIZE:EXTRA LARGE single to double concave"( 2 Fin Set ) FCS Compatible, Flat Inside Foil: This is the original template for the CI twin fin dating back to the early 1980s. It is a looser twin as compared to the Mark Richards style twin, and when hooked up with a small trailing center fin, makes a great loose feeling thruster. You will feel the speed of a twin fin along with positive drive of a tri fin." True Ames