I think it's important to mention before we get into more pages here that standards for white dresses vary from organization to organization and even chapter to chapter, so before buying any of these, actives and new members should check to make sure that a dress meets the qualifications for THEIR OWN chapter before buying.
I've seen girls buy white dresses that were totally inappropriate for our purposes before and get burned when ritual either made them get a different dress or turned them away from whatever we were doing.