Arctic Cubic One Piece Circle Ruched Halter Push Up Slim Tummy Control Tankini Swim Dress Size runs smaller than US standard clothing size, so please view our Size Chart carefully. Please select the size according to your chest/bust measurement. Please choose the next size up if you are not quite sure about the sizing. Front ruching. Built-in padded Bra. Halter neck. Attached boyshort swim bottom.