How can you tell if your ray bans have glass or polycarbonate lenses?

To determine if your Ray-Ban lenses are glass or polycarbonate, you can perform a simple scratch test. Glass lenses are more scratch-resistant and unlikely to show scratches easily, while polycarbonate lenses may scratch more easily. Additionally, you can check the weight; glass lenses are generally heavier than polycarbonate. Finally, look for any markings on the lenses or packaging that may indicate the material type.