Le Creuset is a brand that primarily makes enameled cast iron cookware, which means the cookware is coated with a layer of enamel to prevent rust and eliminate the need for seasoning. Traditional cast iron, on the other hand, is bare metal and requires regular seasoning to maintain a non-stick surface and prevent rust. Enameled cast iron, like Le Creuset, is easier to clean and care for, while traditional cast iron offers better heat retention.