The size smaller than US size,so you should check carefully to choose your fit.
US X-Small=China Small:Length:39.76"(101cm),Waist:27.56"(70cm),Hip:36.22"(92cm),Sleeve Length:12.99"(33cm)
US Small=China Medium:Length:40.16"(102cm),Waist:29.13"(74cm),Hip:37.80"(96cm),Sleeve Length:13.39"(34cm)
US Medium=China Large:Length:40.55"(103cm),Waist:30.71"(78cm),Hip:39.37"(100cm),Sleeve Length:13.78"(35cm)
US Large=China X-Large:Length:40.94"(104cm),Waist:32.28"(82cm),Hip:40.94"(104cm),Sleeve Length:14.17"(36cm)