Shoe construction utilizing a bootie with an impervious sole and method of production

A liquid impermeable bootie adapted to be incorporated into footwear which comprises:

• an inner, upper liner that is air permeable, moisture vapor transmissive and liquid impermeable and the inner, upper liner allows for air flow of at least 0.03 cubic centimeter per minute per square centimeter at a pressure of a 1.27 centimeter water column (0.05 cubic feet per minute per square foot at a pressure of a 0.5 inch water column) and the inner, upper liner allows for moisture vapor transmission of at least 500 grams per square meter (14.85 ounces per square yard) or more of water (H2O) vapor in a twenty-four (24) hour period and includes a microporous membrane;
• and
• a sole liner that is inelastic, air impermeable, moisture vapor impermeable and liquid impermeable and the sole liner allows for air flow of less than 0.03 cubic centimeter per minute per square centimeter at a pressure of a 1.27 centimeter water column (0.05 cubic feet per minute per square foot at a pressure of a 0.5 inch water column) and the sole liner allows for moisture vapor transmission of less than 500 grams per square meter (14.85 ounces per square yard) of water (H2O) vapor in a twenty-four (24) hour period and the sole liner is selected from the group consisting of inelastic, thermoplastic material, fiber reinforced polymeric material and nonthermoplastic material, wherein the inner, upper liner is attached to the sole liner.

A process for producing a shoe construction comprising:

• providing a sole;
• providing an upper that together with the sole define a volume for receiving and protecting a wearer”s foot against external elements;
• and
• securing a liquid impermeable bootie, having an inner, upper liner that is attached to a sole liner, within the shoe so that the inner, upper liner that is located underneath the upper and the sole liner is located inside the upper, wherein the inner, upper liner is moisture vapor transmissive and liquid impermeable and the sole liner is air impermeable, moisture vapor impermeable and liquid impermeable.

A process for producing a shoe construction comprising:

• providing a sole;
• providing an upper that together with the sole define a volume for receiving and protecting a wearer”s foot against external elements;
• and
• securing a liquid impermeable bootie, having an inner, upper liner that is attached to a sole liner, within the shoe so that the inner, upper liner that is located underneath the upper and the sole liner is located inside the upper, wherein the inner, upper liner is air permeable, moisture vapor transmissive and liquid impermeable and the sole liner is air impermeable, moisture vapor impermeable and liquid impermeable.