Size Guide: 52 □ 21 - 149

Lens Width (A): 52mm

Lens Height (B): 33mm

Bridge (C): 21mm

Frame Front (D): 149mm

Temple Length: 149mm

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.