| 摘要 |
Disclosed is a sole for shoes, of the waterproof and vapour-permeable type. The sole includes a lower element made of plastic material, on which a tread provided with multiple through holes is formed. The sole includes a membrane which is impermeable to water and permeable to water vapour and is arranged above the lower element so as to be superimposed on the through holes. The membrane is joined perimetrically and hermetically to the sole so as to avoid the rise of liquids through the sole. The sole has means for protecting the membrane comprising individual vapour-permeable protective elements, each arranged so as to block a corresponding through hole. The protective elements are arranged below the membrane so as to be superimposed on the area of the holes. The lower element forms, for each through hole, an undercut region for preventing downward extraction for each protective element. The membrane overlaps the through holes and is joined perimetrically and hermetically to the lower element to form a single perimetric seal.
|
