I don't see auras myself--I "feel" them. It's hard to explain. I've never heard someone tell me they see colors of clothing etc., but they emit a different color. Now, the aura comes from the person themselves, from the chakras. It doesn't come from what they wear, although that can be calming or assertive. I think you are seeing the "real" auras, but am not sure why. I mean, the auras of the people who wore or last touched the clothes. There really isn't a lot of info about auras out there, people either see or feel them, or not. There are articles that tell you how to see them, but I never found them too helpful. But it sounds to me like you have a gift, if that's what you see, just trust it!