3M Nasau Rave Safety Eyewear features a distinctive unisex design with adjustable lens angles and temple lengths. Minimizes fogging with vertically vented browgard. Its wrap around lens helps provide front and side protection.its a shade 5 IR ,black frame .dx hard coating . Distinctive unisex design with adjustable lens angles and temple lengths Minimizes fogging with vertically vented browgard Its wrap around lens helps provide front and side protection Vertically vented browgard minimizes fogging Anti-fog hard coat protects from fog, scratching, and many chemicals. Shade 5.0 IR lens. Polycarbonate lens absorbs 99.9% UV.