Keen - Boston II (Olive) - Women's: The Boston has classic urban styling with the comfort of a running shoe. Waterproof leather upper. Classic oxford lace design. Leather and moisture-wicking synthetic lining. Removable metatomical EVA footbed. Compression molded EVA midsole. Patented toe protection. Non-marking carbon rubber outsole. Weighs 10 oz. (283 g).