The Kansas City Barbeque Society recently opened an "official store" that offers KCBS gear for sale online.
The shirts on the web site are color coded according to your status with the KCBS sanctioning body. Gold represents a KCBS contest representative. Maroon represents a certified barbecue judge. The rank and file members of the KCBS are offered white shirts, either long sleeve or golf shirt style.
I understand the need for coloring coding to make it easy for competitors to identify contest representatives, but I'm not quite sure why the cook teams are stuck with basic white as the only color choice offered. Anyone that's ever competed in a barbecue contest knows that those white shirts won't be white for very long!