Talk:Team RWBY/@comment-108.70.176.90-20140904111235/@comment-10390252-20140904112706

I think that they're the girls' civilian street clothes. Their fighting costumes are very obviously something they only wear when 'on duty', expecting to go into combat or if they are in an appropriately combat-oriented practical lesson.

Because, in A Minor Hiccup and Painting the Town...  they were acting unofficially and independently of their role as Beacon Students, they were wearing their street clothes. I imagine that, if they ever re-film volume 1, we'd see the girls in Slayer, Snow Pea, Intruder and Hunter during Black and White.