KEEN's patented toe protection. Metatomical EVA footbed with AEGIS® Microbe Shield. AEGIS® Microbe Shield treated lining for anti-odor, anti-microbial protection. Compression molded EVA midsole absorbs shock and adds cushioning. Features KEEN.Cork which is a renewable, natural and more sustainable form of cushioning that helps reduce the impact on your feet and the environment. Non-marking, two-part, lightweight rubber outsole.