Cara Coat world Class racing visors for Arai GP-5, SK5. These are the original visor as used by many F1 drivers, beware of imitations.

Blue mirror reflects against short wavelength of visible zone, it avoids to see random reflection of light, and can be visible shapely to a long distance.
The view color is a yellow similar to hunting sunglasses. The blue light, which causes random reflection,is reflected mainly. For this reason, the contrast becomes very good. It is mainly suitable for the cloudy race but suitable for sunny day since the lens also has a tint.

Silver Mirror, which has a section near the center of the visible light zone. This visor is reactive, so when reflection is high, it will get more chromium color on visor's surface . View from inside, it is the same as a very dark smoke lens.