Keen - Boston (Plum) - Women's: The Boston has classic urban styling with the comfort one has come to expect from their running shoes. A timeless design, the Boston integrates fit and comfort, being built on the anatomical Keen last. The calf leather and Cambrelle linings blend natural and man made materials for superior comfort. Non marking outsole rubber compound for superior coefficient of friction for all environments. Compression molded EVA midsole is contoured for superior comfort and support of the foot structure. Toe guard allows you to worry about the activity, not your toes. Waterproof leather upper resists weather and stains, staying soft and supple. Waxed laces provide simple closure and will stay tied; Removable pig leather footbed adds cushioning and comfort under foot.