Abstract: A container opening support system, including an annular member and a securement assembly, positionable inside of an open end of a flexible membrane.

Abstract: A container opening support system, including an annular member and a securement assembly, positionable inside of an open end of a flexible membrane.

Abstract: A container opening support system, including an annular member and a securement assembly, positionable inside of an open end of a flexible membrane.

Abstract: A container opening support system, including an annular member and a securement assembly, positionable inside of an open end of a flexible membrane.

Abstract: Disclosed herein are embodiments of a container opening support system for supporting a flexible container in an open condition to facilitate filling the flexible container, and methods of making and using such a container opening support system, the container opening support system including an annular member having annular member first and second ends which movably couple to one another to allow adjustment of an annular member perimeter between contracted and expanded conditions, whereby in the contracted condition, the annular member perimeter bounds a lesser interior space in relation to the expanded condition, in which the annular member perimeter bounds a greater interior space; and a securement assembly which releasably secures the annular member first and second ends in fixed relation to one another following adjustment of the annular member perimeter.