Geox FLEXYPER GIRL B Geox LEXYPER GIRL B ankle boots have AMPHIBIOX technology. Their patented system provides GEOX shoes with excellent breathability and comfort. The sole has been perforated and a special microporous membrane has been inserted into the shoe to absorb and wick away sweat without allowing water to get inside. Patented AMPHIBIOX technology ensures waterproofness while guaranteeing the shoe's breathability without compromising comfort. A special waterproof membrane ensures an ideal comfortable microclimate and keeps the foot warm, dry and naturally breathing. Geox FLEXYPER GIRL B