Unbelted Champion
From MiddleWiki
An armored combatant who does not have a white belt (or baldric) and is not a member of the Order of Chivalry is said to be unbelted or an unbelt. A certain number are chosen Their Majesties as their Champions to compete for a war point at the Pennsic War each year, and it is regarded as a high honor to be selected.
To be selected as an Unbelted Champion, one must contact Their Royal Majesties, a member of the Order of Chivalry or another Unbelted Champion to find out what is required to be selected.