US: XS (32–34) to United Kingdom Size 42–44

US: XS (32–34): Corresponds to a chest width of 81.3–86.4 $\text{cm}$ (32–34 $\text{in}$), neck collar girth of 35.6 $\text{cm}$ (14 $\text{in}$), sleeve length of 81.3 $\text{cm}$ (32 $\text{in}$), and fit style Slim Tailored Fit.

United Kingdom Size 42–44: Corresponds to a chest width of 106.7–111.8 $\text{cm}$ (42–44 $\text{in}$), neck collar girth of 41.9 $\text{cm}$ (16.5 $\text{in}$), sleeve length of 88.9 $\text{cm}$ (35 $\text{in}$), and fit style Comfort Fit.