Size Guide: 57 □ 20 - 117

Lens Width (A): 57mm

Lens Height (B): 35mm

Bridge (C): 20mm

Frame Front (D): 147mm

Temple Length: 117mm

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.