Portlandia Terra Shoes Two adjustable buckle straps offer a just-right fit. Contoured leather footbed with arch support conforms to the shape of your foot for custom comfort. Durable rubber outsole delivers sure-footed traction. Material Content: synthetic upper, upper lining and sockliner, cork footbed and midsole, polyurethane shank, rubber outsole. Care: Spot clean upper with a damp cloth.