THEY GIVE 97 % U.V. LIGHT PROTECTION. THE LIGHT SMOKE TINT VISORS HAVE A LIGHT TRANSMISSION OF 50%AND GIVE 100 % U.V. LIGHT PROTECTION. MADE IN THE U.K. BY BOB HEATH VISORS LTD FROM 2.0 MM LEXAN POLYCARBONATE ,ALL OF THESE VISORS HAVE AN ABRASION RESISTANT COATING ON BOTH SIDES APART FROM THE CLEAR ANTI FOGS, WHICH HAVE AN ABRASION RESISTANT OUTER COATING AND FOG RESISTANT COATING ON THE INNER SURFACE.
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