A coil of hair is a hairstyle in which the hair is wound into a circular shape. A CHIGNON is a type of coil of hair that is usually worn at the nape of the neck. It is made by gathering the hair into a low ponytail and then winding it into a BUN or knot. A HANK is a type of coil of hair that is created by winding the hair around itself in a spiral pattern. Finally, a BUN is a type of coil of hair that is created by wrapping the hair around itself in a circular shape and securing it with pins or a hair tie.