Abstract: A method for the treatment of wool garments with ozone gas to control and inhibit their felting and shrinkage during their subsequent industrial finishing process and/or domestic washing care, and a wool garment treated with said method. The method includes wetting the garments and treating the garments inside the interior of a rotative tumbler for a time period of between 15 and 60 minutes at ambient temperature with ozone gas, the ozone gas being at a concentration in air of between 20 g ozone/Nm3 and 150 g ozone/Nm3, where the rotative tumbler which contains the garments is rotated at a speed of between 10 rounds/min and 25 rounds/min. The method is improved by adding treating the garments with enzymes.