Sunglasses Size Guide
Sunglasses come in a variety of sizes but are built to fit most face/head shapes.
Quick ways to find your current size:
Check Your Current Pair
Look inside the arm of your sunglasses for three numbers (e.g., 52-18-140). These represent lens width, bridge width, and temple length in millimeters.
(Image provided by ray-ban.com)
Measure the Width of your Temple
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Narrow (under 130mm) → Small frame
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Medium (130-140mm) → Medium frame
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Wide (over 140mm) → Large frame
Most common frames will fit you if you measure to Medium/Wide.
(image provided by wikiHow)