Puppies are usually born true to type. Body longer than high and low to the ground. Active, agile and silent when working. The Irish Glen of Imaal is said to be less easily excited than other terriers, though he is always ready to give chase when called on. Foreface of power, tapering to the nose.
Teeth sound, regular, strong and of good size.
Light eyes should be penalised. Small rose or half pricked when alert, thrown back when in repose. Full drop or prick undesirable. Very muscular and of moderate length. Deep and long, and longer than high.