The position of goalkeeper is the only position in the game which is technically distinct from the others in the course of normal play. The Laws of the Game distinguish the goalkeeper from the other players in several ways, most significantly exempting them from the prohibition on handling the ball, though only within their own penalty area. Once a goalkeeper has control of the ball in their hands, opponents are not permitted to challenge them. Goalkeepers have a specialised role as the sole defender against a penalty kick. Goalkeepers are required to wear distinct colours from other players, and are permitted to wear caps and tracksuit bottoms.