US: S to Europe Size 46
Cross-market men’s jacket and coat conversion mapping S specifications into 46.

Analyzing Outerwear Size Equivalence Across Markets
US: S: Features a chest width of 92 (36.2 ), shoulder breadth of 44 (17.3 ), and sleeve length of 83 (32.7 ) with built-in layering allowance.
Europe Size 46: Features a chest width of 96 (37.8 ), shoulder breadth of 45 (17.7 ), and sleeve length of 85 (33.5 ) with built-in layering allowance.