A substrate for construction of an article of clothing for a fur covered pet made of a series of layers of specialized fabric assembled in a specific configuration so as to impart synergistic cooling and heating properties to the animal's microclimate. The various fabrics are engineered to have a specialized function that they impart, such that when combined, their various properties allow the control of the temperature and humidity of the volume of air between the animal's skin and the article of clothing, thus aiding in keeping the animal from overheating or freezing.