These Bollé Safety COBRA Safety Glasses have yellow lenses. Approved for permanent wear and certified with perfect optical quality, it is designed and used in case of low light situations improving contrast. With anti-fog and anti-scratch coatings. 99.9% UVA/UVB protection. Specification Lens Type: Clear, Anti-Fog and Anti-Scratch.Lens Conforms to: EN1661B/EN170-UV 2C-1.2.Frame Conforms to: EN166FT.