A triple density replacement insole, comprising: a generally foot-shaped substrate having a length extending from a heel area to an arch area to a toe area, said foot-shaped substrate having a front end, a back end, a medial side, a lateral side, a top surface and a bottom surface; at least two coextensive layers adjacent and secured to one another and extending the length of the insole, said coextensive layers comprising a top cloth layer and a gel layer comprising a first density gel; a stability cradle adjacent said gel layer and forming a portion of said bottom surface, said stability cradle extending from the arch area to the heel area and secured to the gel layer, said stability cradle having a central portion located centrally in the arch area of said foot-shaped substrate and having a first appendage extending forward and laterally from the central portion, a second appendage extending forward and medially from the central portion, a third appendage extending rearwardly and laterally from the central portion, and a fourth appendage extending rearwardly and medially from the central portion, the first and second appendages defining a cradle metatarsal gap which exposes the gel layer between the first and second appendages, the third and fourth appendages extending vertically up and around the heel area and on the back end of the foot-shaped substrate where the third and fourth appendages meet, and defining a cradle heel gap between the third and fourth appendages; an advanced cushioning area integrally formed in said gel layer and located in said toe area along the bottom surface; and, a heel cushion forming a portion of said bottom surface, said heel cushion positioned in the cradle heel gap adjacent to said gel layer and secured to said gel layer exposed in the cradle heel gap. a generally foot-shaped substrate having a length extending from a heel area to an arch area to a toe area, said foot-shaped substrate having a front end, a back end, a medial side, a lateral side, a top surface and a bottom surface; at least two coextensive layers adjacent and secured to one another and extending the length of the insole, said coextensive layers comprising a top cloth layer and a gel layer comprising a first density gel; a stability cradle adjacent said gel layer and forming a portion of said bottom surface, said stability cradle extending from the arch area to the heel area and secured to the gel layer, said stability cradle having a central portion located centrally in the arch area of said foot-shaped substrate and having a first appendage extending forward and laterally from the central portion, a second appendage extending forward and medially from the central portion, a third appendage extending rearwardly and laterally from the central portion, and a fourth appendage extending rearwardly and medially from the central portion, the first and second appendages defining a cradle metatarsal gap which exposes the gel layer between the first and second appendages, the third and fourth appendages extending vertically up and around the heel area and on the back end of the foot-shaped substrate where the third and fourth appendages meet, and defining a cradle heel gap between the third and fourth appendages; an advanced cushioning area integrally formed in said gel layer and located in said toe area along the bottom surface; and, a heel cushion forming a portion of said bottom surface, said heel cushion positioned in the cradle heel gap adjacent to said gel layer and secured to said gel layer exposed in the cradle heel gap.