Pyramex Venture II Safety Glasses , Curved Lens Type , Gray Lens Color , Polycarbonate Lens Material , Anti-Fog, Scratch Resistant Lens Coating , Black Frame Color , Nylon 6.6 Frame Material , 99% UV , Adjustable Temple Adjustment , ANSI Z87.1 -2010, CSA Z94.3, CE EN166, MCEPS GL-PD 10-12 Standards , 9.75 Curved Base , 2.2 MM Lens Thickness , 27 Gram Weight