Final answer:
The MCPON wears a badge on their sleeve with an eagle, crossed anchors, a shield, and three stars. This insignia symbolizes their position as the highest-ranking enlisted member of the U.S. Navy.
Step-by-step explanation:
The MCPON (Master Chief Petty Officer of the Navy) wears on their sleeve a unique combination of insignia representing their rank and position. Specifically, the MCPON wears a badge with an eagle perched atop two crossed anchors behind a shield, topped by three stars. This insignia is indicative of the MCPON's role as the highest-ranking enlisted member of the United States Navy and is a symbol of their authority as an advisor to the Chief of Naval Operations and the Chief of Naval Personnel.
For example, the MCPON would wear a rating badge with an eagle and three chevrons to represent their rank as a Senior Chief Petty Officer.