Geox founder - Mario Moretti Polegato addresses the issue of unhealthy foot perspiration with his simple, yet revolutionary, patented Geox breathes® system. The Geox breathes® system consists of a membrane that absorbs sweat from the insole and expels it as water vapor through micro-holes in the outsole. The micro-holes are larger than water vapor, but smaller than water droplets, so water only goes out and never comes in. This allows for better circulation in the feet and elimination of most foot odor due to perspiration.