Composite vapor-permeable insole

suitable composite template to allow transpiration comprising a first layer (2) of flexible material having at least one work area, at least one pad (4) made of vapor-permeable material applied to said first layer (2) in said work area, and a second layer (3) made of relatively soft material which is permanently applied to said first layer (2) in an area or not affected by the pad areas (4), characterized in comprising an opening through (29) in at least one zone which is not affected by said pad (4) and at least one insert (28) made of flexible material, positioned in said through opening (29), the insert (28) comprising at least a membrane (30) having a contour (31) coupled between said first and second layer (2 and 3), said membrane (30) being arranged to take alternately, in use, a rest position, in which delimits a top surface outwardly convex and raised with respect to said first layer (2) and a lower concave surface (33) outwards and recessed with respect to said second layer (3), and a working position, in which it is compressed within said opening by the heel of the user.