Team uniform (dress, top and skirt, or top and shorts) clearly distinguishing the two teams; Position bib worn on the front and back, displaying the position abbreviation (GS, GA, WA, C, WD, GD, GK); Footwear suitable for the playing surface; no spikes
Why people argue about this
People often assume that the only reason for clearly distinguishing player apparel is purely aesthetic, like team colors. But in Netball, where games can be fast-paced with players moving around a lot, having distinguishable uniforms helps referees and spectators keep track of which players belong to which team, especially during quick changes or when players are far from their usual positions.