From hidden coves to rushing rivers, the Keen Women&';s Whisper Sandal can manage any water-filled adventure. The quick-draw elastic cord lacing system adjusts to a comfortable and secure fit. The washable polyester upper features the odor-reducing Aegis Microbe ShieldA(R). The foot-cushioning EVA footbed provides comfort on the go. Women&';s-specific fit. Washable polyester webbing upper. Aegis Microbe ShieldA(R) hydrophobic mesh lining helps to prevent foot odor. Secure fit lace capture system. Metatomical EVA molded footbed with Aegis Microbe ShieldA(R) - This internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot. Compression-molded EVA midsole. Non-marking rubber sole with multi-directional lug pattern. Avg. wt. 8.8 oz