US: 3XL to Europe Size 46

US: 3XL: Features a chest width of 132 $\text{cm}$ (52 $\text{in}$), shoulder breadth of 58 $\text{cm}$ (22.8 $\text{in}$), and sleeve length of 101 $\text{cm}$ (39.8 $\text{in}$) with built-in layering allowance.

Europe Size 46: Features a chest width of 96 $\text{cm}$ (37.8 $\text{in}$), shoulder breadth of 45 $\text{cm}$ (17.7 $\text{in}$), and sleeve length of 85 $\text{cm}$ (33.5 $\text{in}$) with built-in layering allowance.