Size Guide: 54 □ 20 - 148

Lens Width (A): 54mm

Lens Height (B): 36mm

Bridge (C): 20mm

Frame Front (D): 140mm

Temple Length: 148mm

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.