The Šarplaninac is a robust, well proportioned dog with plenty of bone, of a size that is well above the average and with a thick, long, rather coarse coat that emphasizes the short coupled appearance. They are about 38–55 kg and 70 to 82 cm. Although much larger dogs do exist which can reach up to 80 kg - most of these "giants" are probably of mixed breed origins and probably not pure.
The coat is dense, about 4 inches (10 cm) in length, and can be rough or smooth.
All Šarplaninac are solid in colour: fawn, iron grey, white or almost black; usually sable or gray with darker "overalls" on the head and back, the undercoat being paler. The colour need not be completely uniform, and most Šarplaninac have several different shades of the same colour fading into one another. There are no bicolours and no uniformly black-coated dogs among purebreds, but odd-coloured specimens do exist. The dogs must not have large white patches in their coat.
The temperament of the breed is described as independent, reliable, protective but not snappy, incorruptible and devoted to its master. The breed is aloof with outsiders, and calm until a threat to the flock presents itself. The breed has an extremely protective nature. In the absence of a flock of sheep, the Šarplaninac will often treat its humans as sheep - herding them away from danger or undesirable areas. They are serene and majestic, gentle with children and smaller dogs. They are also highly intelligent and bred to work without human supervision while guarding the flocks in the high pastures. Young pups can kill small animals until trained not to hunt.
Like many of its cousin Mountain dogs, the Šarplaninac is a very serious and dedicated guard dog. Due to this, they are naturally suspicious of strangers and will need good socializing at a young age to lessen this innate personality trait. They are calm and gentle with their family but when faced with danger they become a formidable foe, not a suitable breed for all. Consistent and firm training is essential to ensure compliance.
Text from wikipedia.org