One Piece Ruched 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. Built-in Bra. Front ruching. With tiered ruffles. Attached boyshort swim bottom. Arctic Cubic is a registered US trademark of swimsuit products and is exclusively distributed by Arctic Cubic. Arctic Cubic trademark is protected by US Trademark Law.