Which item is specifically required in the Official Dress for male members?

In the Official Dress code for male members, the requirement for a white collared shirt is essential as it maintains a formal and professional appearance, which is a key aspect of FFA's values. The white collared shirt serves as a staple component of the uniform, projecting an image of unity and pride among FFA members during competitions, meetings, and official events. This requirement aligns with the organization’s commitment to promoting professionalism and respect in agriculture.

While the other options may contribute to a casual or less formal appearance, they do not meet the specific requirements set forth for Official Dress. Blue jeans do not align with the needed professionalism, a sport jacket may be worn in some contexts but is not a requirement, and leather shoes, although preferred, can vary depending on the specific guidelines set for an event. Therefore, the white collared shirt stands out as a necessary element in ensuring that male members present themselves in accordance with FFA's standards.