UV400 Protection - Protect your eyes from harmful UV rays with these legit lenses.
Polycarbonate Lenses - Cassette's high-end polycarbonate lenses are second to none. Polycarbonate lenses have extremely high optical clarity that's comparable to glass, but with a much higher shatter resistance.
Polycarbonate - Cassette's Polycarbonate frames are shatter resistant and provide high comfort.
These measurements include the width of the lens, the width of the bridge, and the length of the arms measured in millimeters.
For example, a 56-17-144 frame:
1) Lens Width - 56mm
2) Bridge Width - 17mm
3) Arm Length - 144mm