A footwear construction that includes an improved footwear upper liner is
provided. The liquid impermeable footwear upper liner is constructed of
air permeable, waterproof and moisture vapor transmissive materials as
well as air impermeable, waterproof and moisture vapor impermeable
materials. A process for constructing a footwear component utilizing the
improved footwear upper liner is also provided. The process comprises
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 the improved liquid impermeable footwear upper
liner within the footwear so that the footwear upper liner is located
underneath the upper. In an alternative embodiment, the improved footwear
upper liner is attached to a sole to form a bootie for use in footwear
construction.