ESS Crosshair One Eyewear features impact-resistant construction that's Mil-Spec compliant and meets or exceeds ANSI Z87.1-2015 and U.S. Federal OSHA safety standards. A black semi-rimless frame with a wide nosepiece enables a comfortable fit, while an interchangeable smoke gray lens filters 99.0% of harmful UV radiation. The Crosshair One is compatible with the ESS Cross-Series eyeshield platform.