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.
With a round design, The St. Paul has a full metal frame, enhanced with nose pads and spring hinges. Excellent for everyday wear when you're out and about, it is the sturdy fashionable choice.
