Unko Mens Punk Half Cardigan Long Sleeve Button Front Polo Shirts 100% Cotton Made and ship from China, so size is smaller than US size US X-Small=China Medium:Length:24.41"(62cm), Bust:36.22"(92cm), Shoulder:15.75"(40cm), Sleeve length:22.83"(58cm) US Small=China Ledium:Length:24.80"(63cm), Bust:37.80"(96cm), Shoulder:16.14"(41cm), Sleeve length:23.23"(59cm) US Medium=China X-Large:Length:25.20"(64cm), Bust:39.37"(100cm), Shoulder:16.54"(42cm), Sleeve length:23.62"(60cm) US Large=China 2X-Large:Length:25.59"(65cm), Bust:40.94"(104cm), Shoulder:16.93"(43cm), Sleeve length:24.02"(61cm)