Abstract: The present invention provides a container comprising: (a) a semi-enclosed container body including a tubular structure having two open ends and a bottom panel enclosing one end of the container body, the other end of the tubular structure opposite from the bottom panel forming a substantially continuous outwardly-extending peripheral flange; (b) a lid for selectively converting the semi-enclosed container to a closed container; and (c) a closure for sealing the lid to the container body, the closure comprising a mechanical interlocking seal and a slideable mechanical closure for sealing the mechanical interlocking seal. The container is preferably stackable and self-supporting, and the mechanical interlocking seal includes at least one interlocking bead and groove pair located on the lid and flange. The container may also be collapsible via folding of the tubular structure.

Abstract: The present invention provides a container comprising: (a) a semi-enclosed container body including a tubular structure having two open ends and a bottom panel enclosing one end of the container body, the other end of the tubular structure opposite from the bottom panel forming a substantially continuous outwardly-extending peripheral flange; (b) a lid for selectively converting the semi-enclosed container to a closed container; and (c) a closure means for sealing the lid to the container body, the closure means comprising a mechanical interlocking seal and a slideable mechanical closure for sealing the mechanical interlocking seal. The container is preferably stackable and self-supporting, and the mechanical interlocking seal includes at least one interlocking bead and groove pair located on the lid and flange. The container may also be collapsible via folding of the tubular structure.