US: 34-36 to United Kingdom Size 42-44

US: 34-36: Corresponds to a relaxed chest range of 90–94 $\text{cm}$ (35.4–37 $\text{in}$), elastic waist range of 76–82 $\text{cm}$ (29.9–32.3 $\text{in}$), and fit classification Relaxed / Comfort Fit.

United Kingdom Size 42-44: Corresponds to a relaxed chest range of 106–110 $\text{cm}$ (41.7–43.3 $\text{in}$), elastic waist range of 92–98 $\text{cm}$ (36.2–38.6 $\text{in}$), and fit classification Relaxed / Comfort Fit.