US: M to Europe Size 50

US: M: Features a chest width of 100 $\text{cm}$ (39.4 $\text{in}$), shoulder breadth of 46 $\text{cm}$ (18.1 $\text{in}$), and sleeve length of 87 $\text{cm}$ (34.3 $\text{in}$) with built-in layering allowance.

Europe Size 50: Features a chest width of 104 $\text{cm}$ (40.9 $\text{in}$), shoulder breadth of 47.5 $\text{cm}$ (18.7 $\text{in}$), and sleeve length of 89 $\text{cm}$ (35 $\text{in}$) with built-in layering allowance.