Their annual Military Appreciation game where they wear all purple. They are 25-4 all-time on Military Appreciation Day, winning their last 15 in a row. The last loss coming in 2007 from VT. But, IIRC, the last loss they suffered wearing all purple was 2009 at BDS. We beat them wearing all-purple that year and went on to win the ACC (beating them again). My guess is we wear either all white or G/W/W.