Container with waterproof bottom and method of making same

A method of making a container with a waterproof bottom comprised of the following steps in any order:

• making an upper body of a flexible material having a bottom portion so as to produce a hollow section therein, and
• making a separate bottom section of the same or another flexible material;
• providing a molded base of a rubber-like material having a bottom panel and integral encircling upstanding sides, said sides having a channel in an outer upper portion of said sides;
• attaching the bottom section to the molded base;
• placing a last that has a shape complimentary to the bottom section onto the bottom section onto the bottom section;
• vulcanizing the rubber-like material to form a unitary bottom having an upper portion,
• removing said last;
• inserting the bottom portion of said upper body into the upper portion of said unitary bottom;
• and
• stitching the upper portion of said unitary bottom to the bottom portion of said upper body through the channel.

A method of making a container with a waterproof bottom comprised of the following steps in any order:

• making an upper body of a flexible material having an upper section;
• providing a molded rubber-like material having two parts, a bottom part and an upstanding side part encircling said bottom part, said upstanding side part having a channel in an upper portion thereof;
• placing a complimentary shaped last onto the bottom panel;
• attaching to said bottom part a flexible material with an adhesive;
• vulcanizing the rubber-like material so that said bottom part is attached to said upstanding side part;
• inserting the lower section of the upper body into the vulcanized bottom part;
• and
• stitching the bottom panel to the upper body through said channel.