US: 3XL to Europe Size 52

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 52: Features a chest width of 108 $\text{cm}$ (42.5 $\text{in}$), shoulder breadth of 49 $\text{cm}$ (19.3 $\text{in}$), and sleeve length of 91 $\text{cm}$ (35.8 $\text{in}$) with built-in layering allowance.