Conforms to EN 166 1FT KN and EN170. uvex X-tended injection moulded design around brow, nose and side arms combines soft with harder materials allowing the spectacle to adapt to the wearer's face delivering ultimate fit for outstanding protection and comfort. Slim side arm design makes it easy to wear with other PPE e.g. ear defenders, helmets and bump caps. The duo-spherical lens delivers an excellent field of vision. Side arms feature soft grip technology for a secure, non-slip fit. uvex permanent lens coating technology: anti-fog coating on the inside (during EN test lens stays fog free for at least 16 seconds - norm requires 8 seconds to pass the anti-fog test), extremely scratch-resistant and chemical-resistant on the outside (uvex supravision excellence). Provides reliable UVA, B and C protection up to 400mn.