FCSII Modern KeelOverview Upright keel template designed for traditional fish shapes. Lower sweep (rake) than most conventional, wider based keels which allows it to pivot in a really tight radius. High area and depth not only delivers a feeling of control when pushed harder on the open face, but helps to maintain tremendous speed through roundhouse cutbacks. Black & Clear in Performance Glass, White in new PC AirCore material. Board Types Designed to fit the FCS II