Bolle Viper II Glasses - Clear Lens Electric Blue Frame 100% Nylon For protection against UV radiation, low impact energy and impact at extreme temperatures Ultra-lightweight design Adjustable temples. Anti-resistant, antifog and anti-static coating. Upper protection Lenses: Polycarbonate (PC) - 2.15mm - Curve 8. Frame: Polycarbonate (PC) + Nylon Weight: 25g. Supplied with adjustable cord