more or less high on the upper depending on the degree of imperviousness desired for the shoe depending on the desired aesthetic effect the polymer strip 3 is applied on the shoe after hiding with appropriate covers the zones that one does not wish to be coated this makes it possible to have a clean demarcation between the covered zones and the uncovered zones if conversely one wishes to have a faded effect between the covered zones and the uncovered zones the covers are eliminated 0033 fig3 shows another embodiment in which the polymer layer 3 is applied on a very ventilated material of the upper 1 such as a mesh a mesh is used to make ventilated very lightweight shoes the disadvantage of this type of material obtained by knitting is that it is very fragile and sensitive to abrasion it is surprisingly noted that a polymer layer applied on the meshed textile material considerably improves the abrasion resistance of this material without preventing air from passing through and therefore preserving the breathability of the material preferably the mesh used is a so called tri dimensional mesh i e a material constituted as shown in fig4 of two parallel sides or laps 11 12 of fabric connected together and kept at a distance from one another by a median layer of fibers 13 extending essentially perpendicular to the plane constituted by each of these sides and defining an elastically compressible air space between these two sides 11 12 such a.