The phrase "wooly coat" refers to a thick, fluffy and warm type of fur or hair that is found on animals, like sheep or some dogs, which helps them stay cozy in cold weather. Full definition
Large and beautiful Malamute with woolly coat. (texalmal.org)
Regardless of the origin of the name, this breed has a thick, wooly coat in a rich gray blue color. (cat-lovers-only.com)
Omega - 3 fatty acids EPA and DHA support that gorgeous wooly coat as well as healthy cerebral development, while optimized protein levels help to maintain lean muscle. (geekwrapped.com)