These spectacles offer excellent comfort along with an extremely tough flexible frame with all round vision lenses that have 100% UV protection, class 1 impact and highest quality optical vision. They have a special coating to seal the surface from chemicals and make cleaning them easy as well as extremely scratch resistance. The frames are made of duo-component material with softer areas to protect sensitive areas such as nose and ears. The side arms can be adjusted for length and tilt. CE approved to EN166 1F. They are available in clear or amber for enhanced vision.