A fringe movement dedicated to wearing robes instead of trousers, even around Muggles. The president of F.A.R.T. is Archie Aymslowe (Pm).
Although never stated, it seems likely that the Archie who is president of F.A.R.T. is the same as the Archie who was wearing a flowered nightdress at the 1994 Quidditch World Cup (GF7).