Note!!! The The This is the Asian size, less than the size of the United States, in the product description which has a detailed size.
US Small=China Large:Length:32.60"(82.8cm),Bust:43.31"(110cm),Shoulder:18.11"(46cm),Sleeve Length:30.71"(78cm)
US Medium=China X-Large:Length:33.07"(84cm),Bust:44.88"(114cm),Shoulder:18.62"(47.3cm),Sleeve Length:31.50"(80cm)
US Large=China 2X-Large:Length:34.17"(86.8cm),Bust:46.46"(118cm),Shoulder:19.13"(48.6cm),Sleeve Length:32.28"(82cm)
US X-Large=China 3X-Large:Length:34.65"(88cm),Bust:48.03"(122cm),Shoulder:19.65"(49.9cm),Sleeve Length:33.07"(84cm)
Emastor Basic Business Men Thick Warm Casual Single-Breasted Wool Pea Trench Coat - OXYLOTQ27