KEEN Uneek - Men's Shoes: Dark Olive/Black: Soles haven't experienced true, uninhibited freedom until they have slipped into the KEEN Uneek sandal. ; Innovative two-cord upper construction features polyester braided cord with a nylon core that provides increased strength. ; Two cords and a simple, free-moving cord junction design allows the upper to move and adapt to the foot's shape, promoting enhanced freedom of movement that doesn't compromise structural support. ; Microfiber heel back provides both security and comfort. ; Bungee-lacing system offers a secure fit and feel. ; Metatomical footbed with microfiber cover molds to the foot for the perfect fit and feel. ; Lightweight PU midsole supplies lasting, daylong comfort. ; High-traction, non-marking rubber outsole with razor siping delivers secure, reliable traction. ; Imported. Measurements: ; Weight: 13 oz ; Product measurements were taken using size 11.5, width D - Medium. Please note that measurements may vary by size. KEEN Uneek Men's Shoes Dark Olive/Black: 9 D - Medium, Synthetic