New Radians Revelation Safety Glasses. This is a new pair of Radians Revelation safety glasses. These have a 5 position ratchet plus 4 position telescoping temples for superior fit. These have soft, non-slip rubber nosepieces for long wearing comfort. The lenses are hard coated. These lenses provide 99.9% UVA and UVB protection. There are ventilation channels between the lenses and frames. These meet or exceed all ANSI Z87.1 and CSA Z94.3 requirements. Silver mirror which allows approximately 14% visible light transmission. Great for outdoor applications where sunlight and glare caused eye strain and fatigue. When it comes to safety eyewear, Radians is unsurpassed in selection, quality, delivery and value.