Coat

Should be dense and wiry in texture, rich in quality, having a broken appearance, but still lying fairly close to the body, the hairs growing so closely and strongly together that when parted with the fingers the skin is hardly visible; free of softness or silkiness, and not so long as to alter the outline of the body, particularly in the hindquarters. On the sides of the body the coat is never as harsh as on the back and quarters, but it should be plentiful and of good texture. At the base of the stiff outer coat there should be a growth of finer and softer hair, lighter in color, termed the undercoat. Single coats, which are without any undercoat, and wavy coats are undesirable; the curly and the kinky coats are most objectionable.