Fulling, also known as tucking or walking, is a step in woollen clothmaking which involves the cleansing of woven cloth to eliminate (lanolin) oils, dirt, and other impurities, and to make it shrink by friction and pressure. The work delivers a smooth, tightly finished fabric that is insulating and water-repellent. Well-known examples are duffel cloth, first produced in Flanders in the 14th century, and loden, produced in Austria from the 16th century on.