WATERPROOF AND VAPOR-PERMEABLE ASSEMBLY INSOLE AND SHOE MANUFACTURED WITH SUCH INSOLE

摘要

An assembly insole which is impermeable to water and permeable to water vapor, with a structure which comprises a membrane (11) which is impermeable to water and permeable to water vapor and is arranged in an upward region, and a supporting layer (12) which is arranged below the membrane (11), is made of a material which is resistant to hydrolysis and is vapor-permeable or diffusely perforated, and is capable of acting as a support for the foot, as a manufacturing base for the shoe, as an element for protecting the membrane (11) against the penetration of blunt objects, and of withstanding the stresses induced in the shoe during use, the membrane (11) and the supporting layer (12) being mutually joined so as to make, as a whole, said assembly insole impermeable to the passage of water and not compromise the vapor permeability of the membrane (11).