Method for manufacturing a watertight, breathable shoe structure in which
the shoe structure comprises an exterior upper with a lower end, an
interior upper with a lower end, an insole with a continuous outer edge
and an outsole, with the interior upper having a watertight, water vapour
permeable functional layer on the side facing towards the exterior upper,
characterised in that at least one of the sewn seam joints relating to
the interior upper with the watertight, water vapour permeable functional
layer is formed such that a tape made from a thermoplastic material is
first placed between the parts of the shoe structure to be joined, in the
area of the intended sewn seam, said tape having a melting temperature in
the range from 60.degree. C. to 85.degree. C., that the parts are then
sewn together and that after sewing the tape is caused to melt at least
in the area of the sewn seam.