The Crosshair features interchangeable 2.4mm polycarbonate high-impact lens that provide 100% UVA/UVB protection. ToughZone lens coating for maximum scratch resistance. The ESS Crosshair exceeds ANSI Z87.1 optical standards and U.S. Military impact requirements while providing all-day comfort and a universal fit. This entry-level eyeshield goes well beyond the basic necessities of eye protection: with a baseline of advanced performance and superb adaptability, the Crosshair benefits from complete compatibility with the ESS Cross-Series eyeshield platform. As part of the ESS Cross-Series, the Crosshair can be upgraded at any time with premium anti-fog Crossbow lenses, including the high-impact Polarized Gray option. It can also be adapted for use under hearing pro and comms gear with ESS' ultra-thin Suppressor frames.