US: 42 Short to Europe Size 58 Regular

US: 42 Short: Corresponds to a chest girth of 106.7 $\text{cm}$ (42 $\text{in}$), stature length variant Short (Under 173 cm / Under 5’8”), and a trouser drop offset of Drop 6 (waist: 91.4 $\text{cm}$ (36 $\text{in}$)).

Europe Size 58 Regular: Corresponds to a chest girth of 121.9 $\text{cm}$ (48 $\text{in}$), stature length variant Regular (173–180 cm / 5’8”–5’11”), and a trouser drop offset of Drop 6 (waist: 106.7 $\text{cm}$ (42 $\text{in}$)).