Look of A Singlet
In most high school and college wrestling matches, the competitors wear singlets in their team colors. To designate a competitor's color for scoring purposes a red or green anklet is also worn.
Outside school competition (e.g., in international wrestling: freestyle and Greco-Roman) wrestlers bring a red and a blue singlet (or reversible singlet) and are told before the match which color to wear.
Singlets are also common among professional wrestlers (such as Bret Hart, Kurt Angle, and Rob Van Dam). Many of these are much more stylized than those worn by amateurs, although the use of singlets in professional wrestling has declined in the last two decades.
Read more about this topic: Wrestling Singlet