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)
42
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.
Large and in charge, the Boost D-frame glasses are just what you need to revamp your daily look. The frame boasts a thin metal construction, as well as adjustable silicone nose pads and spring hinges. This is the perfect standout pair for medium faces with softly curved features.
