With an average weight of 30 to 37 pounds and height of 44 to 48 centimetres, the Kerry Blue Terrier is a compact and proportioned breed that boasts of a lovely blue wavy hair. It has a well-balanced head that is flat on top, as well as strong a foreface. It has dark medium eyes that exude a vigilant and typical terrier expression. It also has v-shaped ears, a strong jaw with a perfect scissor bite and mouth and gums that are dark in colour. Its body is short with a good depth of brisket and well-sprung ribs. Its tail, which used to be customarily docked, is set high and erect.
The most striking feature of the Kerry Blue Terrier is its blue astrakhan-type coat that is soft, silky, dense, and wavy. According to KC standards, the accepted colour for adult Kerry Blues is blue of any shade, with or without black points. It is permitted to have white hair on the chest. Puppies are generally born with black coats, which gradually turns blue as they turn 18 months.
Kerry Blue Terriers have high grooming needs with their coats needing daily brushing especially around their muzzles. Although they do not shed heavily, their coats need trimming every 6 to 8 weeks, which is better off left to a professional groomer. This breed has a certain appearance to maintain that is difficult for owners to follow on their own. The hair between their pads should also be trimmed regularly. Other grooming requirements are regular trimming of nails, tooth brushing, ear cleaning, and skin inspection for bumps and fleas.