The Radians Revelation offers 5-position ratchet plus 4-position telescoping temples for superior fit. 16 lens colors to choose from for all your safety glass needs. The Revelation is also available in a polarized version. Features: 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 Polarized lens option 99.9% UVA/ UVB protection Safety glasses meet ANSI Z87.1 + standards