CAT Workwear's Track Safety Glasses come in the three lenses, Clear, Smoke and Yellow.  LENS SPECIFICATION - high wrap molded lens for upper and lower protection, 2.4 polycarbonate material tested at velocity to shield from impact, crystal clear optical class 1 lens recommended for continuous wear, fog prevention coating, hard coated both sides for resistance to scratching. FRAME CHASSIS - universal fit, polycarbonate temples co-injected with soft tips, high comfort PVC tip composite, color coded integrated nose fit.