Which of the following is not commonly worn for protection during wrestling?

In wrestling, various protective gear is crucial for the safety and well-being of the athletes. Headgear is commonly worn to protect the ears from injuries like cauliflower ear, and mouthguards are essential for safeguarding the teeth and jaw during matches. Chest protectors are also used, particularly by female wrestlers, to shield the chest area from impact.

Socks, however, are not a standard protective item in wrestling. While wrestlers may wear special footwear designed for grip and support on the mat, socks alone do not offer significant protection or support during matches. They can actually be a hindrance, as they may not provide the necessary traction that wrestling shoes do. Therefore, the absence of socks as a protective measure distinguishes them from the other options listed, making them the correct choice in this context.