Flexible insulative container

A pliable, thermally insulative container for maintaining the temperature of contents of the container, comprising:

• a substantially cylindrical body portion having a top end and a bottom end, said body portion comprising a flexible, waterproof interior liner bag and a flexible, waterproof exterior shell, wherein said interior liner bag and said exterior shell are sealed together at said top end of said body portion forming an insulative interior space therebetween and a substantially cylindrical storage space that is lined by said interior liner bag and having an opening at said top end of said body portion;
• a substantially circular waterproof base sealed to said exterior shell at said bottom end of said body portion so as to enclose said insulative interior space between said interior liner bag and said exterior shell;
• a flexible insulative side portion being disposed within said interior insulative space between said interior liner bag and said exterior shell of said body portion, wherein said side portion extends from said bottom end to a point adjacent to said top end creating an uninsulated region at said top end of said body portion to facilitate closure of said opening;
• a flexible insulative base portion being disposed within said interior insulative space between said interior liner bag and said waterproof base;
• a band fixed to said exterior shell of said body portion at said top end, wherein said band is rolled over itself and said uninsulated region at said top end of said body portion;
• and
• a quick-release coupling having an insertion member and an engaging member, wherein said insertion member and said engaging member are affixed to said band at opposite ends thereof, wherein said engaging member resiliently engages said insertion member for fixedly closing said opening;
• wherein said closed container is waterproof such that ice may be used as a cooling medium within said storage space.