Pay attention to check the size, here is from the China size.
US Medium=China X-Large:Length:26.77"(68cm),Bust:44.88"(114cm),Shoulder:18.90"(48cm),Sleeve Length:25.59"(65cm)
US Large=China 2X-Large:Length:27.56"(70cm),Bust:46.46"(118cm),Shoulder:19.29"(49cm),Sleeve Length:25.98"(66cm)
US X-Large=China 3X-Large:Length:28.35"(72cm),Bust:48.03"(122cm),Shoulder:19.69"(50cm),Sleeve Length:26.38"(67cm)
US 2X-Large=China 4X-Large:Length:29.13"(74cm),Bust:49.61"(126cm),Shoulder:20.08"(51cm),Sleeve Length:26.77"(68cm)