(Fine) Straight hair:

Fine straight hair, on this site simply called "straight hair", can show the same lack of curls as coarse straight hair. But it differs by a much finer texture, the diameter is smaller and not round, but oval. Fine straight hair is often transitional to weakly wavy hair that appears especially at the end of the hairs if it is grown very long. Fine straight hair exists in all colours, it is common among Europeans, West Asians, Indians, Native Americans, Polynesians, East and North Asians, as well as Polynesians.