anthracite color Birkenstock slippers size 44 slight wear on outer layer well worn shearling lining toe box warn with depressed toe marks {view photos} Wool felt upper Slip-on design Shearling lining for comfort & warmth (New Zealand) Suede footbed liner keeps your foot dry & comfortable Contoured cork footbed supports the arches of the foot Deep heel cup for all-day comfort Dipped rubber outsole for traction Flat heel