What piece of equipment is essential for safety in wrestling matches?

Headgear is essential for safety in wrestling matches because it helps protect the wrestler's ears from injuries, particularly in the form of cauliflower ear, which is a common condition resulting from repeated trauma to the ear. The design of wrestling headgear includes padded ear cups that shield the ears and a chin strap that holds it in place, ensuring stability during intense matches. While wrestling shoes are important for grip and support, and other protective gear like body armor and protective gloves can be beneficial in certain contexts, headgear specifically addresses the vulnerability of the ears during grappling and contact, making it critical for wrestlers' safety in this sport.