US: L to Europe Size 42

US: L: 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.

Europe Size 42: Features a chest width of 88 $\text{cm}$ (34.6 $\text{in}$), shoulder breadth of 42 $\text{cm}$ (16.5 $\text{in}$), and sleeve length of 81 $\text{cm}$ (31.9 $\text{in}$) with built-in layering allowance.