What kind of equipment may a player compete with?

A player may compete with a protective face mask made of hard material that is molded to the face without any protrusions because this type of mask offers adequate protection to the players while conforming to safety regulations set forth by volleyball governing bodies. The design ensures that there are no elements that could lead to injury to the player or those around them during play.

In volleyball, safety is a primary concern, and equipment must meet specific criteria to ensure that it does not pose any risk during matches. Protective gear, like face masks, should not interfere with gameplay or create hazards for other players. Therefore, a molded face mask that fits snugly to the player’s face and lacks protrusions adheres to these guidelines.

Other types of equipment, such as a helmet with padding or just any face mask, do not meet the specific safety standards required for volleyball. Helmets may be too bulky and could hinder the player's ability to move freely while playing. Additionally, face masks that do not follow the specified design may not provide the necessary protection or could pose risks during gameplay. Hence, the chosen option stands as the only one that conforms to the regulations while ensuring safety on the court.