Chin is firm, in line with nose and upper lip. Wide at the base and open, curving back in smooth arc when viewed from front or rear. Tips rounded and flexible. When Curls are alert with ears swiveled toward front, lines following curve of ear through tips should point to center of base of skull. Walnut, oval on top and round on bottom, moderately large in size.
Eye color is clear and brilliant.
There is no relation to coat color except blue eyes are required in pointed cats. Neck is medium. Size and boning are intermediate with allowances for larger males. Medium boning, neither fine nor heavy. Equal to body in length, wide at base, tapering, flexible.