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)
41
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.
No matter which side of the tracks you’re on, you’ll want to be seen with the Railtown frame. A sleek pair that will suit small to medium faces, these glasses will look great on a variety of face shapes thanks to the versatile rounded D-frame silhouette. In addition, the keyhole bridge will suit wider noses.
