Phú Quốc Ridgeback are a breed of dog from Phú Quốc Island in Vietnam's southern Kiên Giang Province. One of only three breeds that has a ridge of hair that runs along its back in the opposite direction from the rest of the coat. Its extremely loyal, loving, and naturally obedient, thriving on human relationships. The dog was traditionally four main colors, however now have become more varied. The PQR remains rather rare outside of its native Vietnam and can prove difficult to obtain.