Keen - Venice (Bison) - Men's: GIS Microbe Shield treated SBR lining controls bacteria and fungi that cause odors, stains, and product deterioration, while being free of environmentally harmful substances. Washable waterproof leather upper. V-Strap forefoot capture design offers superior fit with added ventilation. Metatomical low durometer EVA footbed. Compression molded EVA midsole. Non-marking siped rubber outsole.