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.
The semi-rimless Underwood boasts a contemporary design with a touch of vintage flair. These glasses showcase a thin metal construction and aviator tear drop lenses. The spring hinges will provide a flexible fit for medium faces, while the silicone nose pads will suit a variety of nose shapes and sizes.
