The light weight PVC, PC single lens Porous ventilation, adjustable elastic headband The lens is easy to replace, reduce cost The light weight PVC, PC single lens Porous ventilation, adjustable elastic headband The lens is easy to replace, reduce costs Anti chemical splash, sand, acid and alkali resistance ART.NO TA93-3LENS PC,PVCFRAME PCDESIGN Porous ventilation Protective glasses wearing and ...