Waterproof and vapor-permeable assembly insole and shoe manufactured with such insole

摘要

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

主权项

1. A shoe provided with an assembly insole which is impermeable to water and permeable to water vapor, comprising:
a membrane which is impermeable to water and permeable to water vapor and is arranged in an upward region; a supporting layer which is arranged below the membrane and 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 a foot, as an element for protecting the membrane against penetration of blunt objects, and of withstanding stresses induced in a shoe during use, the supporting layer being configured to close a sack-upper, the sack-upper being a portion of the shoe designed to three-dimensionally wrap around the foot, the membrane and the supporting layer 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; and an upper with lower edges folded and glued below the assembly insole and a sole with wide openings or holes such as to allow maximum vapor permeation, the portions of said sole, which are perimetric, but not in contact with said edges of the upper, being penetrated through said layer, providing an area for a perimetric seal with said membrane.