Geox is the shoe with a rubber sole that 'breathes' geox's solution for a totally waterproof and breathable shoe the rubber sole is perforated and contains a special microporous membrane, waterproof As well as a fully waterproof leather upper, our rubber sole is perforated and contains a special microporous membrane, waterproof and breathable, that absorbs and expels sweat without letting water in as in all geox shoes, feet keep cool and dry thanks to the breathable membrane and the perforated sole