the material is pretty good. it doesnt feel like it's going to get a dent any second, like some uselessly expensive frames in optical clinics. the photochrome stuff works well too, it lessens the strain in my eyes when im out in daylight without making everything too dark. however, it yellowed after a few weeks. better give time for the lens to adjust instead of immediately letting it out in different environments. it is also more for guys than for gals. although it's not so bad if a girl wears...