|SIZE||FRAME LENGHT||TYPE OF FACE (European type)|
|XS:||130mm||For a very small face|
|S:||135mm||For standard female face or small male face|
|M:||140mm||For medium to large women or rather standard men|
|L:||145mm||For women with a very large face or men with a rather large face|
|XL:||150mm||For very large face women or very large face men|
These dimensions are for guidance only and for European face types. Standards can vary greatly from one country or region to another.