The Boxer is a medium to large, short-haired breed of dog, developed in Germany.The coat is smooth and tight-fitting; colors are fawn, brindled, or white, with or without white markings.Boxers are brachycephalic (they have broad, short skulls), have a square muzzle, mandibular prognathism (an underbite), very strong jaws, and a powerful bite ideal for hanging on to large prey.