Abstract: A plastic container includes a plastic body having a polygonal sidewall contour with rounded corners on a cylinder of revolution and flat panels extending between the corners chordally of the cylinder of revolution. In the preferred embodiments of the invention, a label is disposed on an exterior surface of at least one of the flat panels, and most preferably extends circumferentially around the exterior surface of the container sidewall. Upon filling the container with hot liquid and capping the container, the flat panels bow radially inwardly as the liquid cools. However, any labeling placed on the container, either before or after cooling, is secured to the panels as well as the rounded corners, and does not wrinkle or crinkle during storage or use.