Ray-Ban Stickers on Sunglass Lenses
There are several stickers that Ray-Ban uses, here are all of them below with explanation of what they mean.
This here is the polarized sticker, which is placed on Ray-Bans which has polarized lenses.
This here is the G-15 Lens sticker, G15 is Ray-Bans Grey/Green lenses which is made of glass, so frames like the RB 2132, RB 2140 and so on with G15 lenses will have this sticker.
Same as the G15 lens sticker, but the B15 is Ray-Bans Brown glass lenses.