US: 3XL to Europe Size 44

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 44: Features a chest width of 92 $\text{cm}$ (36.2 $\text{in}$), shoulder breadth of 44 $\text{cm}$ (17.3 $\text{in}$), and sleeve length of 83 $\text{cm}$ (32.7 $\text{in}$) with built-in layering allowance.