Elastic cording gives this lightweight performance sandal a secure fit, easy to adjust in or out of the water. The washable upper makes cleaning easy, and the cushioned footbed provides comfort on the go. The internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot. Cleansport NXT for natural odor control, Multi-directional lug pattern for increased traction. Secure-fit lace capture system. TPU stability shank. Women's specific fit. Washable polyester webbing upper. Non-marking rubber outsole. Compression molded EVA midsole. Hydrophobic mesh lining. Metatomical EVA footbed. 8.7 oz / 246.6 g. All KEEN water sandals are machine washable. Use a small amount of detergent, wash on gentle cycle and air dry.