The hair of the Tibetan Terrier has a long growth cycle. As a result, their coat grows quite long and pet animals will require occasional trimming. They do not shed like dogs with shorter hair growth cycles, but rather slough hair at a rate similar to that of most humans. The exception is at approximately nine months when puppies slough their entire coat in advance of acquiring their adult coat. The double coat is profuse, with a warm undercoat and a topcoat which has the texture of human hair. It should not be silky or curled, but wavy is acceptable. Long and thick, it is shown natural, but should not be so long as to touch the floor, as is typical in breeds such as the Lhasa Apso or Maltese. A fall of hair covers the face and eyes, but long eyelashes generally prevent hair from getting in the Tibetan Terrier's eyes, and the breed has very good eyesight.