Abstract: A collapsible luggage piece is provided. The luggage piece has a collapsed configuration and an erect configuration and includes a front panel, a rear panel and a collapsible wall structure disposed between the front and rear panels for cooperation therewith to define an expandable compartment. The wall structure has a first aperture therethrough and a first erecting panel is connected to the collapsible wall structure. The first erecting panel has a first locking element disposed thereon, wherein in the erect configuration the first erecting panel is substantially perpendicular to the rear panel and the first locking element is disposed through the aperture to rigidly attach the first erecting panel to the collapsible wall structure to maintain the luggage piece in the erect configuration and wherein in the collapsed configuration the first erecting panel is moved to a position not perpendicular to the rear panel to allow the luggage piece to collapse.