Style: Gas Mask lens (2.0 mm think) 

  (1)Material:polycarbonate

  (2)Surface treatments:anti-fog treatment,anti-scratch treatment, outside anti-scratch and inside anti-fog treatment

  (3)Function:anti-scratch,anti-fog,anti-impact,anti-UV

  (4)Standard:GB & GJB 

  (5)Color:clear and any color available.