Thanks to a special membrane that is permeable to vapour but impermeable to water, rubber outsoles are able to breathe and leather outsoles remain waterproof. The Geox Kirya sports sneakers features the upper with colorful, shimmering accents which is a combination of sued, grain leather and synthetic elements. The whole rests on a massive sole made of a mixture of extremely light EVA and rubber. It also features a soft, textile lining and a leather insole.