Wrestling singlet
A wrestling singlet (or simply singlet) is a one-piece, tight-fitting uniform, usually made of spandex (elastane) or nylon, used in wrestling. The uniform is tight-fitting so as not to be grasped accidentally by one's opponent, and it allows the referee to see each wrestler's body clearly when awarding points or a pin. Unlike judo, it is illegal to grasp an opponent's clothing in all styles of amateur wrestling.