Short Hair: All over the body, quite hard, close-fitting, not too short coat, with woolly undercoat. Ruff, breeches and tail plume are clearly visible.
Long Hair: All over the body, long, straight well fitting, harsh to touch, without curl or waves and with a woolly undercoat. Distinct ruff and breeches. Tail abundantly coated. Head, ears and feet and also the hind legs below the hocks are short and densely coated. The backsides of the forelegs show a strongly developed coat, shortening in length towards the feet, the so called feathering. No fringes at the ears.
Wire Hair: Dense, harsh tousled coat and a woolly, dense undercoat all over the body except for the head.
The coat should be close. Upper and lower lip should be well-covered with hair, the whiskers and beard, and two well defined, coarse rough eyebrows that are distinct but not exaggerated. Furnishings are not soft. The hair on the skull and on the cheeks is less strongly developed. In profile it seems as if the head has a more square appearance. Strongly developed breeches are desirable. Tail is covered all round with hair. The brindle colour may be less pronounced because of the tousled coat. The wire hair coat should be hand plucked on an average twice a year.