Flexible containers

A non-durable self-supporting flexible container comprising:

• a product volume, which is an enclosable three-dimensional space that directly contains one or more fluent products;
• an expanded structural support volume, which is a fillable space made from one or more flexible materials and is filled with one or more gases at a pressure greater than atmospheric pressure, wherein the one or more gases create tension in the one or more flexible materials;
• a sheet assembly portion having a flexible outer sheet and a flexible inner sheet, which is locally joined to the flexible outer sheet, to form:
• at least a portion of the structural support volume;
• a multi-wall panel, wherein:
• the multi-wall panel is bounded by seams that join the flexible inner sheet to the flexible outer sheet;
• the flexible inner sheet and the flexible outer sheet are in overlapping contact with each other between the seams, along substantially all of the multi-wall panel;
• and
• the multi-wall panel overlays the product volume;
• and
• at least a portion of the product volume, wherein the multi-wall panel is fully bounded by the structural support volume.

A non-durable self-supporting stand up flexible container that has a top, a bottom comprising a base, a front, a back, sides, and an overall height, said container comprising:

• a product volume, which is an enclosable three-dimensional space that directly contains one or more fluent products;
• an expanded structural support volume, which is a fillable space made from one or more flexible materials and is filled with one or more gases at a pressure greater than atmospheric pressure, wherein the one or more gases create tension in the one or more flexible materials;
• a sheet assembly portion having a flexible outer sheet and a flexible inner sheet, which is locally joined to the flexible outer sheet, to form:
• at least a portion of the structural support volume;
• a multi-wall panel, wherein:
• the multi-wall panel is bounded by seams that join the flexible inner sheet to the flexible outer sheet;
• the flexible inner sheet and the flexible outer sheet are in overlapping contact with each other between the seams, along substantially all of the multi-wall panel;
• and
• the multi-wall panel overlays the product volume;
• and
• at least a portion of the product volume,
• wherein when the base of said container is resting on a horizontal support surface, the container has its largest overall height.