The somewhat narrow muzzle and the whisker break are distinctive characteristics of the breed and must be evident in the typical specimen. Ideally, the tip of the nose and the chin form an almost perpendicular line. Allowance to be made for somewhat broader heads and stud jowls in the adult male. Allow for sparse hair on chin, directly below lower lip. Little hair inside or outside.
Adult males tend to be larger than their female counterparts.
Overall balance and proportion rather than size to be determining factor. The neck is medium in length and in proportion to the body. Legs are straight. Hind legs slightly longer than front. Paws are oval and compact.