Generic Mens Casual One Button Slim Fit Blazer Jacket Business Suit cotton blend Pay attention to our size, pls check the detail measurement.Smaller than US size. US Small=China Large:Length:27.17"(69cm), Bust:40.94"(104cm), Shoulder:16.93"(43cm), Sleeve length:25.20"(64cm) US Medium=China X-Large:Length:27.56"(70cm), Bust:42.52"(108cm), Shoulder:17.72"(45cm), Sleeve length:25.59"(65cm) US Large=China 2X-Large:Length:27.95"(71cm), Bust:44.09"(112cm), Shoulder:18.50"(47cm), Sleeve length:25.98"(66cm) US X-Large=China 3X-Large:Length:28.35"(72cm), Bust:45.67"(116cm), Shoulder:18.90"(48cm), Sleeve length:26.38"(67cm)