Charles Owen 4 Star Jockey Skull The 4Star jockey skull is certified to the top international standards. Neat quick release buckle in a high strength alloy fastens the patented GRpx harness system for the ultimate in stability. Deep-fitting 4Star is the result of years of advanced computer analysis and incorporates the latest aramid fibres, which are embedded in a tough resin matrix for vastly improved crush resistance. Free Fit system which allows for increased airflow across the forehead. Comes with a black ventilated silk.