Size Guide: 54 □ 21 - 146

Lens Width (A): 54mm

Lens Height (B): 41mm

Bridge (C): 21mm

Frame Front (D): 148mm

Temple Length: 146mm

To identify the right glasses size, you can use a ruler to measure the total width of your current frame. The suitable width of the frame should be +/-4mm from the size of your current glasses.