VAPOR-PERMEABLE ELEMENT IN THE COMPOSITION OF SOLES FOR SHOES, A SOLE PROVIDED WITH SUCH VAPOR-PERMEABLE ELEMENT, AND A SHOE WITH SUCH SOLE

摘要

A vapor-permeable element (10, 210, 310, 410, 510, 610) to be used in the composition of soles for shoes, which comprises: a supporting frame (11, 211, 311, 411), which delimits substantially at least one large through hole (12, 512); a membrane (17, 117) which is impermeable to water and permeable to water vapor and is arranged above the supporting frame (11, 211, 311, 411) so as to cover at least the large through hole (12, 512); at least one vapor-permeable or perforated protective layer (19) for the membrane, which is arranged between the supporting frame (11, 211, 311, 411) and the membrane (17, 117), so as to cover at least the large through hole (12, 512).The membrane (17, 117) and the protective layer (19) are joined to each other at least at their perimeter edges, and they are connected to said supporting frame (11, 211, 311, 411); the protective layer (19) with the tread of the sole to which it is attached, is available for contact with the ground during the use of the sole.