On each product leaflet, we indicate the temple width (distance between your temples) and the frame size (S for Small, M for Medium or L for Large) in order to help you select the pair of sunglasses most suited for your face.
To figure out know the temple width of your face, use a ruler to measure the distance between the two horizontal screws of the arms on your current glasses. (If you have a fine/angular/large round, we recommend the size small/medium/large).
Size S refers to a temporal distance of 127-134 mm, size M to 130-163 mm and finally size L to 133-139 mm.