| CL-21M Skull and Thorns Helmet HJC CL-21M Skull and Thorns Helmet Lightweight injection-molded thermoplastic alloy shell Adjustable channeled forehead vents allow for flow-through ventilation Plush brushed-Nylex interior Two-piece dual density EPS liner for shock absorption and directed airflow 3-snap smoke bubble visor Removable zip-off neck curtain with brushed-Nylex liner for added comfort Nylon strap-retention band neatly secures chin strap |