You've never seen anything like the innovative KEEN® Men's UNEEK sandals. Woven with sturdy yet giving nylon cord, this women's sandal conforms to your particular foot shape and cradles it for lasting comfort. The UNEEK's internal support mechanism follow the natural curves of your foot to provide excellent arch support. Underfoot, the non-marking outsole with razor siping lends grip so you can traverse nearly any terrain. Sizing tip: This style runs 1/2 size small. KEEN® suggests ordering a 1/2 size larger than your usual size. FEATURES: Polyester braided cord upper with nylon core for increased strength Lightweight PU midsole Metatomical footbed provides excellent arch support and cradles the natural contours of the foot Microfiber footbed cover Microfiber heel back Non-marking rubber outsole with razor siping Weight per shoe: 11.1 oz/314.7 g (Men's size 9) Care instructions: Hand wash with cold water and a mild soap. To remove excess dirt or spot clean, use a stiff brush or soft cloth. Do not machine wash. Allow to air dry away from heat.