Why Do Wrestlers Wear Singlets?

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. Unlike judo, it is illegal to grasp an opponent's clothing in all styles of amateur wrestling.

Do wrestlers wear anything under their singlets?

Wrestlers usually wear a jockstrap under their singlets to prevent their groin squashing during rigorous movements and throws. Some Wrestlers choose to wear just compression shorts, or nothing at all, under their singlet for complete freedom of movement.

Why do wrestlers not wear cups?

This kind of safeguarding cup is made up of light metal or solid resistance plastic. It has a smooth side to give the player both support and comfort. Most professional WWE wrestlers don't wear cups as they're not as necessary since most groin shots are angled to miss the groin.