The uniform is tight-fitting so as not to get grasped accidentally by one's opponent, and allows the referee to see each wrestler's body clearly when awarding points or a pin.
[1] In most high school and college wrestling matches, the competitors wear singlets in their team colors.
[5] The singlet became common in college wrestling in the late 1960s and early 1970s; in fact, it had been banned by the NCAA for years.
[6] A new style of singlet, known as a double or doublet, has recently emerged in college wrestling that covers more of the upper body.
[8] Only with special permission are wrestlers allowed to wear a t-shirt under their singlet, most commonly for sanitary reasons involving excessive acne on the chest or back.