Abstract: A dual purpose unitized pack is capable of use as a container for conveniently holding a limited measure of articles as well as a container for holding a relatively substantial measure of articles. The unitized pack comprises a pouch, a substantially flat enclosure member attached to the pouch, an open top collapsible sack positioned in the enclosure member and attached thereto and a belt attached at least on one end to the pouch. The open top sack is capable of being fully contained within the enclosure member and the enclosure member folded behind the pouch during non-use. In use, the enclosure member is folded out and closures on an upper edge and a lower edge thereof opened to access the flexible sack. The sack drops through the lower edge opening to a fully extended state capable of holding the relatively substantial measure of articles.