Flexible container with spouts and closure

1. A container comprising:

a base and freestanding sides extending from the base to define a mouth opposite the base, wherein the base, the freestanding sides, and the mouth are a unitary whole container without assembled parts, the mouth comprising:

a first spout;

a second spout opposite the first spout;

a female zipper member extending from a first interior side of the mouth from the first spout to the second spout, the female zipper member comprising:

a female middle portion comprising:

two middle flanges extending from the first interior side of the mouth to define a middle channel between the two middle flanges, and

a distal female middle shoulder extending from each of the two middle flanges toward each other into the middle channel;

first and second female end portions opposite each other with the female middle portion between, each of the first and second female end portions comprising:

two end flanges extending from the first interior side of the mouth to define an end channel between the two end flanges,

wherein the two middle flanges extend farther from the first interior side of the mouth than the two end flanges;

a male zipper member extending from a second interior side of the mouth from the first spout to the second spout, wherein the female and male zipper members are positioned opposite each other so as to share the same central axis to be engageable when closing the mouth, the male zipper member comprising:

a male middle portion positioned opposite the channel of the female middle portion and comprising:

a middle trunk extending from the second interior side of the mouth, and

two distal male middle shoulders extending opposite each other from the middle trunk; and

first and second male end portions at opposite ends of the middle portion positioned opposite the end channels of the first and second female end portions, each of the first and second male end portions comprising:

an end trunk extending from the second interior side of the mouth,

wherein the middle trunk extends farther from the second interior side of the mouth than the end trunk;

wherein the male and female zipper members do not extend across either the first or second spout when the mouth is in an open configuration;

wherein each of the first and second female end portions further comprise a distal female end shoulder extending from each of the two end flanges toward each other into the end channel, and the distal female middle shoulders extend from the two middle flanges farther than the distal female end shoulders extend from the two end flanges; and

wherein the each of the first and second male end portions further comprise two distal male end shoulders extending opposite each other from the end trunk and the male middle shoulders extend farther from the middle trunk than the male end shoulders extend from the end trunk.

2. The container, as claimed in claim 1 , wherein the base and sides have thicknesses greater than 0.5 mm.

3. The container, as claimed in claim 1 , wherein the base and sides have thicknesses between 0.7 mm and 1.3 mm.

4. The container, as claimed in claim 1 wherein the thickness of each of the first and second zipper members is less than 5.0 mm.

5. The container, as claimed in claim 1 , wherein the female middle portion tapers into both of the first and second female end portions, and wherein the male middle portion tapers into both of the first and second male end portions.

6. The container, as claimed in claim 1 , wherein the base, freestanding sides, and mouth consist essentially of silicone.

7. The container, as claimed in claim 1 , wherein the base and sides have thicknesses greater than 0.5 mm, and wherein the thickness of each of the male and female zipper members is less than 5.0 mm.

8. The container, as claimed in claim 1 , wherein the mouth is biased toward the open configuration such that when the container stands freely on its base the mouth stays open when in the open configuration.