Abstract: A plantar shaped shoe sole constituted by layers includes a mid-sole constituted by a body and elastically compressible protrusions protruding downward from a body lower surface, each having an axial cavity and first holes. An upper surface of the body has holes associated with first holes of each protrusion. First protrusions are arranged at a central area of the heel and forefoot of the body and have a greater protruding height than second protrusions. First and second protrusions have first and second apices, respectively, forming anatomically-contoured curved surfaces, formed at protrusion free ends, opposite the body lower surface. Each axial cavity extends from the upper surface to their respective apex. There are more forefoot region first holes of first protrusions than second protrusions. The sole includes a tread and an elastic plantar supporting structure, at least one seat on the upper surface wherein the apices are positioned on the seat.

Abstract: A mid-sole, or insole, particularly for shoes, is constituted by a body which has an upper surface which has a plantar-like perimetric shape. From the lower surface of the body a first plurality and a second plurality of elastically compressible protrusions protrude downward, each one having an axial cavity. During walking or running, the protrusions adapt rapidly to movements and to the shape.