Radians Revelation Safety Glasses - Dark Smoke - The Radians Revelation offers 5-position ratchet plus 4-position telescoping temples for superior fit. 5-position ratchet temples provides a comfortable safety glass fit. 4-position temple length adjustment. Soft, non-slip rubber nose pad with self adjusting fingers. Ventilation channel between safety lens and protective frame provides extra fog control. 99.9% UVA/UVB protection. Safety glasses meet ANSI Z87.1 + standards.