Copyright © Françoise Herrmann
METHOD FOR MANUFACTURING A WATERPROOF AND VAPOR-
"The present invention relates to a method for manufacturing a waterproof and vapor-permeable shoe. [...]Traditionally, vapor-permeable shoes are those which use natural materials such as leather or equivalent products, which however, in the presence of rain or bad weather, because of their vapor-permeable properties, do not ensure good waterproofing and indeed absorb rather easily water which can penetrate also through the stitched seams used for assembly." [WO2008119683]
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