Global Vision Shorty 24 Matte Black frame has yellow photochromatic eyewear. Photochromatic eyewear provides optimal sight regardless of the time of day. Photochromatic lenses block harmful ultraviolet rays during the day, then adjust to the evening's fading light. Shatterproof polycarbonate lenses are light sensitive with V400 filter for maximum protection. Fits over most prescription glasses. Has double sided anti-fog coating. Meets standards for shooting and industrial applications.