What is required for headgear in wrestling?

In wrestling, headgear is specifically designed to protect the ears from injury during matches and practices. One of the essential requirements for headgear is that it must have a chin strap. The chin strap serves the dual purpose of securing the headgear in place, ensuring that it remains effective throughout the bout.

This stability is crucial because loose headgear could lead to it slipping off during action, which not only exposes the wrestler to potential injury but could also result in interruptions to the match for adjustments. The chin strap helps keep the headgear properly positioned, allowing the athlete to compete without distraction or risk of gear failure.

The other options do highlight important considerations, such as team color coordination and adjustability, but the fundamental requirement focuses specifically on the presence of a chin strap to ensure safety and functionality.