This is a great pair of Boris Becker shades, Boris gave his name to 4 different styles of sunglasses in the 80′s produced by polaroid. all 4 styles came in 3 different colorways and each with changeable lenses in this brown and a dark gray/greenish one. The colorways of the frames are gold, silver or black. The A version is the Golden one, B the Black and C the Silver version.