Covering hair can refer to a variety of items, such as hats, FUR, SKIN, and rugs. A HAT is a head covering typically made of fabric or straw, and is usually used to protect the head from the sun or cold weather. FUR is a type of material made from animal SKIN, which is often used to make clothing or accessories. SKIN is the outer layer of an animal or human body, and is often used to make leather goods. Lastly, a RUG is a piece of fabric or other material that is used to cover a floor or wall, and is often used to add warmth and texture to a room.