Rubber sole CONSCIOUSLY CREATED: Minimal waste construction now available in multiple materials including canvas, leather and the classic, quick-dry nylon MATERIAL: Washable free moving nylon cords form to the foot giving a natural and free moving feel without losing structure and stability; Microfiber footbed and heel back eliminate chafing SUPPORT & COMFORT: Metatomical footbed design is anatomically engineered to provide excellent arch support; Lightweight underfoot cushioning provides feathery comfort in every step; The adjustable bungee makes this sandal easy on and off TRACTION: Non marking rubber outsole leaves no trace indoors or on boat decks; Siping increases ground traction on wet surfaces by channeling water away from underfoot CARE TIPS: Hand wash with cold water and mild soap; Remove excess dirt or spot clean with a stiff brush or soft cloth; Do not machine wash; Allow to air dry away from heat