Charles owen pro ii skull riding hat the pro ii is a very stylish jockey skull that does not compromise on safety it is highly ventilated to keep you cool and has a low and slim profile keeping your head safe thanks to the soft grpx technology harness which provides the rider with a fantastic and comfy fit the ventilation holes run through both the front and rear of the jockey skull which lets the air run freely especially when combined with the charles owen ventilated silk