What is the authorized size of a mustache?

The authorized size of a mustache, as outlined in Army grooming standards, is specific to ensure uniformity and professionalism among service members. The correct answer emphasizes that a mustache cannot cover the upper lip line or extend beyond a vertical line drawn from the corners of the mouth. This standard serves several purposes, including maintaining a neat and clean appearance which is essential in military settings.

By preventing the mustache from covering the upper lip, it helps ensure that service members can maintain proper hygiene and personal cleanliness, which is crucial in both field environments and everyday military duties. Additionally, the restriction on extending beyond a vertical line from the corners of the mouth ensures that the mustache remains within a defined width, promoting an overall tidy look consistent with military discipline. This guideline reflects the Army's emphasis on appearance standards and the importance of presenting a disciplined and cohesive unit.