Europe Size 52-19-145 to US: XS

Europe Size 52-19-145: Corresponds to a lens width baseline of 52 $\text{mm}$ (2.05 $\text{in}$), bridge width of 19 $\text{mm}$, temple arm length of 145 $\text{mm}$, and fit classification Standard / Regular Frame.

US: XS: Corresponds to a lens width baseline of 46 $\text{mm}$ (1.81 $\text{in}$), bridge width of 16 $\text{mm}$, temple arm length of 135 $\text{mm}$, and fit classification Narrow / Petite Frame.