unworn Keens Whisper Sandal floral/vapor description from manufacturer: A water-friendly sandal that's perfect for adventures anywhere from hidden coves to rushing rivers. Washable polyester webbing builds a sporty upper with a quick draw elastic lacing system. AEGIS Microbe Shield® treatment provides anti-odor protection. Metatomical EVA footbed molds to your foot's shape for personalized comfort. Compression-molded low profile EVA midsole. Classic KEEN toe bumper for added foot protection. Non-marking rubber outsole for steady grip and stability.