The appearance of the McNab can vary considerably. The dog is medium-sized with females standing 16–21 inches at the shoulder and weighing 30–50 pounds and males standing 18–25 inches at the shoulder and weighing 35–65 pounds. The dogs have a variety of ear sets from pricked ears to floppy ears and everything in between. Tails are either short (bobbed naturally or mechanically) or long. McNabs come in colors of black, red, blonde, blue, lilac and sable with variations of solid, added white or added white and tan (tri colored). Their eyes are set well apart, almond shaped, and brown, hazel, or copper colored. The McNab coat is close, dense and weather resistant. They can have a slick single short coat, a short double coat, or a medium length single coat, but their fur is never long. One of the distinctive features of the McNab is their cat-like feet which contribute to their agility.