A low temperature process for integrating a polymeric foam with at least one polymeric body which comprises the steps of: a. Selecting a material for a polymeric body, b. Selecting at least one polymeric material to be foamed, which has a crystal melting temperature in case this material crystallizes, or a glass temperature in case this material does not crystallize, wherein said crystal melting temperature for a crystallizing material or a glass temperature is lower than the temperature at which the residual stresses are liberated from the polymer body, c. Providing a polymeric body; d. Providing the polymeric material to be foamed at a temperature between its glass transition temperature and its crystal melting temperature for a material that crystallizes, or at a temperature below its glass transition temperature for a material that does not crystallize; e. Contacting the polymeric material to be foamed with a gas at a pressure greater than atmospheric pressure for a time sufficient such that the polymeric material to be foamed incorporates at least 0.1 % gas by weight; f. Exposing the polymeric material to be foamed to atmospheric pressure for a time between 20 min and 70 min, so that the stability of the following steps is not affected; g. Exposing the polymeric material to be foamed to a pressure greater than the pressure used in the previous step and a temperature greater than the crystal melting temperature of the polymeric material to be foamed of step b) for a material that crystallizes, or the glass transition temperature of the polymeric material to be foamed of step b) for a material that does not crystallize; and h. Contacting the foamed polymeric material of the previous step with the at least one polymeric body at a pressure lower than that used in the previous step. a. Selecting a material for a polymeric body, b. Selecting at least one polymeric material to be foamed, which has a crystal melting temperature in case this material crystallizes, or a glass temperature in case this material does not crystallize, wherein said crystal melting temperature for a crystallizing material or a glass temperature is lower than the temperature at which the residual stresses are liberated from the polymer body, c. Providing a polymeric body; d. Providing the polymeric material to be foamed at a temperature between its glass transition temperature and its crystal melting temperature for a material that crystallizes, or at a temperature below its glass transition temperature for a material that does not crystallize; e. Contacting the polymeric material to be foamed with a gas at a pressure greater than atmospheric pressure for a time sufficient such that the polymeric material to be foamed incorporates at least 0.1 % gas by weight; f. Exposing the polymeric material to be foamed to atmospheric pressure for a time between 20 min and 70 min, so that the stability of the following steps is not affected; g. Exposing the polymeric material to be foamed to a pressure greater than the pressure used in the previous step and a temperature greater than the crystal melting temperature of the polymeric material to be foamed of step b) for a material that crystallizes, or the glass transition temperature of the polymeric material to be foamed of step b) for a material that does not crystallize; and h. Contacting the foamed polymeric material of the previous step with the at least one polymeric body at a pressure lower than that used in the previous step.