What is the best way to clean a women's shearling coat?

Depending on what is effecting the look of the coat that will determine the best way to clean a women's shearling coat. For example, if the coat is not really dirty the woman can use cleaning spray and a cloth, or if the coat has stubborn dirt, a wire brush can get the dirt off. It is not recommended that shearling coats are tumbledried as this can take the 'life' out of the coat.