Walk comfortably in the KEEN Women's Whisper Sandals, which feature Aegis Microbe Shield® technology that helps control bacteria and fungi that causes odors, stains and product deterioration for a healthy foot environment. The sandals also feature polyester webbing uppers, nonmarking rubber outsoles and EVA midsoles and insoles to ensure a comfortable, cushioned ride. Hydrophobic linings. Secure-fit lace closures. Machine washable. 8 oz. per sandal.