The tallest dog in the world has wire hair, a very good sight and peaceful, docile manners. The male stands at no less than 81 cm to the withers. 
A large sized hound and shaggy hair, the Irish Wolfhound stands from 81 to 86 cm to the withers (79 cm maximum for the FCT), with a proportionate body length, for which it is the tallest dog there is. It has an excellent eye sight, and its strength and speed are impressive. The head is elongated with a not too wide skull, and a long muzzle, not too pointy. In general, the head should not be too heavy or too light. The ears are small, carried back, folded when rested and semi erect when excited. The neck is quite long, well arched, without dewlap or lose skin. The chest, very deep; the back, long and not short; the tail, long and slightly curved; the stomach tucked. The forelegs, very straight and heavy boned; with elbows under the body; thigh, long and muscled. The coat should be hard and thick, abundant and longer over the eyes and under the chin. The feet should be quite large and round. The color, of low importance, includes gray, grayish blue, brindle, red, black, white, fawn and yellowish, and any tail the Deerhound has, according to the FCI.
WHO IS IT RIGHT FOR             
Affectionate, good natured, cheerful and happy as an Irish, protective and obedient, all wrapped in and 86 cm size! No one can deny that space is the first requirement for the Wolfhound: it needs to run and exercise. However, it can be content in a smaller house, since it is very balanced and calm inside the home; and its diet is not as tremendous as one might think of a giant. Children love it, and it gets along with them, although it is not very aware of how large it is, and it can be rough, especially during play. It is not aggressive, and listens to a convincing command from its master.
These babies are still too small to change homes. The responsible breeders don’t let their puppies go until after 12 weeks. 
Many times the litters are reduced. The average weight at birth is 750 kg for the male, the females less. The puppy weighs about 11 kg after seven or eight weeks. The Irish Wolfhound puppy grows quickly, for which an adequate diet and exercise are extremely important during the growing years. The puppy should not be caged, but let it in movement freedom at all time (although not inside the home, naturally), which can complicate teaching it to be clean at home. The Wolfhound needs plenty of nutritious diet, but can lose interests during the growth sprouts. The owner should make sure it receives every vital nutrients. Breeders recommend feeding at least ten times per day during the first year, until reaching its maximum height. Complete maturity is not reached until after three or four years. During adolescence, the hair will become rough, and can change color completely. However, the ears should not change. The owner should teach its Wolfhound to be kind and extrovert, with adequate socialization.
The Irish Wolfhound’s longevity seems only a detail of its height: seek a puppy carefully, research the lines, keep in touch with the breeder, seek a veterinarian you can trust. 
Due to the breed’s fast growth, the Irish Wolfhound should never be caged, but left in space to stretch its ever growing legs. 
The Irish Wolfhound has some serious health problems. The fast growth pace requires a prescribed diet; hip dysplasia, metabolic bone diseases and other bone/joint anomalies are quite frequent. A Wolfhound puppy should not be caged, but leave it enough space to move, to help prevent certain skeleton problems. Tail injuries and sinusitis are more frequent than in other breeds. But the largest concern for the owner is the Wolfhound’s short life span; the males, an average of five to six years, the females between six and seven. Stomach torsion, cancer and heart disease usually is the mortal cause. An adequate diet and exercising can reduce the risk of stomach torsion, and the careful research and study of the different breeding lunes can limit the incidence of cancer and other diseases. Medicating a Wolfhound requires special knowledge – dosing simply by the weigh is dangerous. It is also prone to rhinitis.
The size of the Irish Wolfhound litters varies a lot, from a single puppy to 12. Every puppy requires plenty of time and attention from the owner, since they should be fed four or five times per day during the first year.