The Nitrogen Safety glass by Radians gives the user a telescoping temple length adjustment for a customized, comfortable fit. Provides workers with comfortable protection with self-adjusting fingers on the nose piece to help prevent slipping. The nitrogen safety glass has a extended brow guard that is molded into the lens to offer superior protection and near perfect orbital seal. Clear, polycarbonate lens offers 99.9% UVA & UVB protection and excellent impact resistance. Meets or exceed ANSI Z87.1+ standards. Clear lens with black frame, sold each.