The first impression of a good German Shepherd Dog is that of a strong, agile, well muscled animal, alert and full of life. It is well balanced, with harmonious development of the forequarter and hindquarter. The dog is longer than tall, deep-bodied, and presents an outline of smooth curves rather than angles. It looks substantial and not spindly, giving the impression, both at rest and in motion, of muscular fitness and nimbleness without any look of clumsiness or soft living. The ideal dog is stamped with a look of quality and nobility - difficult to define, but unmistakable when present. Secondary sex characteristics are strongly marked, and every animal gives a definite impression of masculinity or femininity, according to its sex.
The head is noble, cleanly chiseled, strong without coarseness, but above all not fine, and in proportion to the body. The head of the male is distinctly masculine, and that of the bitch distinctly feminine. The expression keen, intelligent and composed. Eyes of medium size, almond shaped, set a little obliquely and not protruding. The color is as dark as possible. Ears are moderately pointed, in proportion to the skull, open toward the front, and carried erect when at attention, the ideal carriage being one in which the center lines of the ears, viewed from the front, are parallel to each other and perpendicular to the ground.
The neck is strong and muscular, clean-cut and relatively long, proportionate in size to the head and without loose folds of skin. When the dog is at attention or excited, the head is raised and the neck carried high; otherwise typical carriage of the head is forward rather than up and but little higher than the top of the shoulders, particularly in motion. Topline- The withers are higher than and sloping into the level back. The back is straight, very strongly developed without sag or roach, and relatively short. The whole structure of the body gives an impression of depth and solidity without bulkiness.
The shoulder blades are long and obliquely angled, laid on flat and not placed forward. The upper arm joins the shoulder blade at about a right angle. Both the upper arm and the shoulder blade are well muscled. The forelegs, viewed from all sides, are straight and the bone oval rather than round.
The ideal dog has a double coat of medium length. The outer coat should be as dense as possible, hair straight, harsh and lying close to the body. A slightly wavy outer coat, often of wiry texture, is permissible. The head, including the inner ear and foreface, and the legs and paws are covered with short hair, and the neck with longer and thicker hair. The rear of the forelegs and hind legs has somewhat longer hair extending to the pastern and hock, respectively.
The whole assembly of the thigh, viewed from the side, is broad, with both upper and lower thigh well muscled, forming as nearly as possible a right angle. The upper thigh bone parallels the shoulder blade while the lower thigh bone parallels the upper arm. The metatarsus (the unit between the hock joint and the foot) is short, strong and tightly articulated.