A multi-layer shoe insole comprises a lowermost metal layer connected to a polyethylene foam layer via a film of polyethylene. An uppermost layer in the form of a felt material is connected to the polyethylene foam via a textile net embedded in a layer of synthetic resin. The insole is provided with a removably attached arch support and a removably attached heel cup. The layers of the insole are stitched to one another by a pair of threads which also serve to maintain the peripheral edge of the insole are a smooth line.