Which part of the flag is referred to as the lower collar?

In color guard terminology, the term "lower collar" refers specifically to the section of the flag that is at the bottom edge. This area is often designed with specific patterns, colors, or finishes that enhance the overall visual impact of the flag as it is waved during performances. Understanding the specific components of a flag, including the lower collar, is essential for proper handling, care, and use in performances, as each part contributes to how the flag looks and how it operates during routines. The naming convention helps to easily communicate about the flag's different sections among team members and instructors, ensuring that everyone is on the same page when discussing flag techniques. The other options do not accurately describe the technical component known as the lower collar, as they refer to different parts of the flag.