Innovative fit-over frame, conventional temples. Visible Light Transmission: 45% Color: light grey. nm OD F18/F22.P1M02 180-315 9+ D LB9 + IR LB4 + M LB6Y 1002-<(><<)>1020 4+ DIRM LB4 1020-<(><<)>1030 6+ DIRM LB6 1030-1070 7+ D LB6 + IR LB7 + M LB7Y >1070-1080 6+ DIRM LB6 >1080-1096 4+ DIRM LB4 9000-11500 6+ DI LB4