The Wiley X Spear Tactial Goggles features Foil lens coating provides anti-fog protection Shatterproof Selenite Polycarbonate lenses that meet the MIL-PRF-32432(GL) ballistic standards: ANSI Z87.1-2010 high velocity and high mass impact standards: as well as US Federal OSHA 1910.133(b)(1)(1) standards. Clear lenses provide maximum light transmission allowing wearer's to see precise color values. Perfect for hazy or overcast, dusk/dawn conditions and indoor use. FeaturesLight transmission: 89%Smoke grey lenses provide glare reduction without distorting colors. Excellent in bright/glare conditions. Light transmission 14%-20%Light Rust lens enhances medium-low light. Light transmission 53%T-Shell Lens coating resists scratching100% UVA/UVB protection with distortion free claritySleek design that is Night Vision Goggle (NVG) Compatible