Abstract: A container which is especially adapted for packaging products for shipment and a method of vacuum forming the same, as an integral unit, from sheet or web stock of a continuous plastic material so as to provide integrally connected wall sections which are adapted to hinge to product enclosing position and to support the product or a group of products in an inner portion of the double walled container, the contour of the inner walls being drawn, if desired, to conform to the contour of the product or products to be enclosed and there being spaced rib formations interposed between the walls of the inner container and the outer container which are drawn integrally with the inner or outer wall members and which serve to support the product containing portion of the inner container in spaced relation within the outer container.