The Collie is a lithe, strong, responsive, active dog, carrying no useless timber, standing naturally straight and firm. The deep, moderately wide chest shows strength, the sloping shoulders and well-bent hocks indicate speed and grace, and the face shows high intelligence. The Collie presents an impressive, proud picture of true balance, each part being in harmonious proportion to every other part and to the whole. Except for the technical description that is essential to this Standard and without which no Standard for the guidance of breeders and judges is adequate, it could be stated simply that no part of the Collie ever seems to be out of proportion to any other part. Timidity, frailness, sullenness, viciousness, lack of animation, cumbersome appearance and lack of over-all balance impair the general character.
The head properties are of great importance. When considered in proportion to the size of the dog the head is inclined to lightness and never appears massive. A heavy-headed dog lacks the necessary bright, alert, full-of-sense look that contributes so greatly to expression. Both in front and profile view the head bears a general resemblance to a well-blunted lean wedge, being smooth and clean in outline and nicely balanced in proportion. On the sides it tapers gradually and smoothly from the ears to the end of the black nose, without being flared out in backskull (cheeky) or pinched in muzzle (snipy). In profile view the top of the backskull and the top of the muzzle lie in two approximately parallel, straight planes of equal length, divided by a very slight but perceptible stop or break. A mid-point between the inside corners of the eyes (which is the center of a correctly placed stop) is the center of balance in length of head.
Neck: The neck is firm, clean, muscular, sinewy and heavily frilled. It is fairly long, carried upright with a slight arch at the nape and imparts a proud, upstanding appearance showing off the frill.
Body: The body is firm, hard and muscular, a trifle long in proportion to the height. The ribs are well-rounded behind the well-sloped shoulders and the chest is deep, extending to the elbows. The back is strong and level, supported by powerful hips and thighs and the croup is sloped to give a well-rounded finish. The loin is powerful and slightly arched. Noticeably fat dogs, or dogs in poor flesh, or with skin disease, or with no undercoat are out of condition and are moderately penalized accordingly.
The forelegs are straight and muscular, with a fair amount of bone considering the size of the dog. A cumbersome appearance is undesirable. Both narrow and wide placement are penalized. The forearm is moderately fleshy and the pasterns are flexible but without weakness.
The well-fitting, proper-textured coat is the crowning glory of the Rough variety of Collie. It is abundant except on the head and legs. The outer coat is straight and harsh to the touch. A soft, open outer coat or a curly outer coat, regardless of quantity, is penalized. The undercoat, however, is soft, furry and so close together that it is difficult to see the skin when the hair is parted. The coat is very abundant on the mane and frill. The face or mask is smooth. The forelegs are smooth and well feathered to the back of the pasterns. The hind legs are smooth below the hock joints. Any feathering below the hocks is removed for the show ring. The hair on the tail is very profuse and on the hips it is long and bushy. The texture, quantity and the extent to which the coat "fits the dog" are important points.
The hind legs are less fleshy, muscular at the thighs, very sinewy and the hocks and stifles are well bent. A cowhocked dog or a dog with straight stifles is penalized. The comparatively small feet are approximately oval in shape. The soles are well padded and tough, and the toes are well arched and close together. When the Collie is not in motion the legs and feet are judged by allowing the dog to come to a natural stop in a standing position so that both the forelegs and the hind legs are placed well apart, with the feet extending straight forward. Excessive "posing" is undesirable.