Method for manufacturing a waterproof shoe structure and shoe structure produced by said method

A method for manufacturing a shoe structure comprising an exterior upper sewn at a lower end of the exterior upper to an insole and an interior upper comprising a waterproof, water-vapour permeable functional layer and a lining, the interior upper having in the region of the insole, an inwardly folded end portion which is connected in a waterproof manner to the insole and has a perimetral edge enclosing an opening, comprising:

• providing the exterior upper whose lower end is contoured towards the insole so as to correspond at least approximately to an outer contour of the insole;
• providing the interior upper having at least a lining facing the inside of the shoe structure and a functional layer, the interior upper having towards the insole, the inwardly folded end portion that has the perimetral edge enclosing the opening;
• providing the insole with a layer of an activatable adhesive in at least one area corresponding to the end portion of the interior upper;
• placing the interior upper on the insole such that the end portion of the interior upper lies on the insole;
• sewing the end portion of the interior upper to the insole along the perimetral edge of the end portion of the interior upper;
• positioning the exterior upper such that the exterior upper envelops the interior upper;
• turning the end portion of the interior upper to the inside such that the end portion of the interior upper, together with the insole and the exterior upper, encloses a cavity;
• sewing the lower end of the exterior upper to an outer edge of the insole;
• placing the end portion of the interior upper flush against the insole;
• activating the adhesive on the layer of the insole;
• and
• pressing the end portion of the interior upper against the insole so that a waterproof connection is formed between the end portion of the interior upper and the insole.