Wraparound face shield window is constructed from sturdy, injection-molded propionate to withstand the most demanding work conditions. Specifically tailored to fit crown protector for a more effective seal against airborne dust, dirt & light debris. Specially angled shapes allow freer head & body movement. 50% thicker than conventional .040" windows for more protection. Will fit comfortably over other protective equipment such as respirators & safety eyewear. Safety Headgear Accessory Type: Face Shield; for Use With: Fibre-Metal ® F400 & F500 Series Face shield Assembly; Material(s): Propionate; Color(s): Clear.