X2 Xceed Clear Safety Eyewear – premium safety over-specs with multi-adjustable arms to meet all fitting requirements Optical Class 1, highest quality clear vision polycarbonate lens Frame Mechanical Strength FT – withstands low energy impact from high speed particles at extreme temperatures 4 way adjustable comfort side arms with soft TPR tips, designed to meet all fitting requirements Fits over normal prescription spectacles Single-piece polycarbonate lens provides high definition clarity Tested and CE Approved to BS EN166 1FT:2002 and EN170 2-1.2