WANSHIYISHE Women Cross Chest Bandage Sexy Bikini Tankini Polyester Fiber Asia Size Unit is runs samll,please go up 1 size than you normally wear on U.S Size, If you are not sure about your size, please refer to the size chart listed below US Small=China Meduim:Wasit:26.77"(68cm) ,Hip:34.65"(88cm),Chest:33.07"(84cm) US Meduim=China Large:Wasit:28.35"(72cm) ,Hip:36.22"(92cm),Chest:34.65"(88cm) US Large=China X-Large:Wasit:29.92"(76cm), Hip:37.80"(96cm),Chest:36.22"(92cm) US X-Large=China 2X-Large:Wasit:31.50"(80cm), Hip:39.37"(100cm),Chest:37.80"(96cm)