Size details:
US X-Small=China Medium:Chest:37.80"(96cm),Length:25.59"(65cm);
US Small=China Large:Chest:39.37"(100cm),Length:26.38"(67cm);
US Medium=China X-Large:Chest:40.94"(104cm),Length:27.17"(69cm);
US Large=China XX-Large:Chest:42.52"(108cm),Length:27.95"(71cm);
US X-Large=China XXX-Large:Chest:44.88"(114cm),Length:28.74"(73cm);
US XX-Large=China 4X-Large:Chest:47.24"(120cm),Length:29.53"(75cm);
US XXX-Large=China 5X-Large:Chest:49.61"(126cm),Length:29.92"(76cm);

• Our size is small than US size,pls check 2 size up.
• US Large=China XX-Large:Chest:42.52"(108cm),Length:27.95"(71cm)
• US X-Large=China XXX-Large:Chest:44.88"(114cm),Length:28.74"(73cm)
• US XX-Large=China 4X-Large:Chest:47.24"(120cm),Length:29.53"(75cm)
• US XXX-Large=China 5X-Large:Chest:49.61"(126cm),Length:29.92"(76cm)

Our size is small than US size,pls check 2 size up.