Frame size is determined by the three key measurements found inside the frame arm: lens width (from 31-60mm), bridge width (from 12-31mm), and arm length (from 115-155mm).
Your lens height (mm)
40
Lens height is essential for multifocal prescriptions, such as Progressives, which require a minimum measurement of 28-30mm. They are also recommended for Rx sunglasses.
In the Joseph Marc Bixby, you're the boss. This rectangular acetate frame features extended wingtips with stylish wraparound metal detail. Integrated nose pads and spring-hinged temples complete the look, and provide a comfortable fit.
