Men Business Slim Solid Short Sleeve Button-Down Shirts Cotton blended Pay attention to our size, pls check the detail measurement.Smaller than US size. US Medium=China XX-Large:Length:29.53"(75cm), Bust:41.73"(106cm), Shoulder:18.03"(45.8cm),Sleeve:9.06"(23cm) US Large=China 3X-Large:Length:30.31"(77cm), Bust:43.31"(110cm), Shoulder:18.50"(47cm),Sleeve:9.45"(24cm) US X-Large=China 4X-Large:Length:30.71"(78cm), Bust:44.88"(114cm), Shoulder:18.98"(48.2cm),Sleeve:9.84"(25cm) US XX-Large=China 5X-Large:Length:31.10"(79cm), Bust:46.46"(118cm), Shoulder:19.37"(49.2cm),Sleeve:10.24"(26cm)