The Bollé Safety COBRA Safety Glasses offer a 180° panoramic visual field with perfect optical quality. Fitted with a non-slip nose bridge and comfortable non-slip straight temples. The glasses have removable temples to allow easy transformation into safety goggles by attaching a foam and strap kit (BOLKITCOBRA). This means that Cobra is an ultra-versatile model.These Bollé Safety COBRA Safety Glasses have ESP (Extra Sensory Perception) lenses. This is an innovative coating to reduce dazzle and the harmful affects of blue light. The ESP coating filters: 57% of blue light 99.99% of UVA/UVB and transmits 64% of visible light. Specification: Lens Marking: EN170-UV 2C-1.2Frame Marking: EN166 1FTCoatings: Hydrophobic/Anti-reflective/ASPTDBOLCOBHDPI