my parents have had an eames knockoff ( I think anyways) for well over 30-35 years at this point. I have had an opportunity to sit in some real ones (I think anyways) and the only real difference that I can recall was that the 'real' one had real leather vs. my parents who perhaps have a synthetic. I will have to check to be sure. Supposedly my cousin tried to call dibs on the chair if they ever wanted to get rid of it. I told her I would gut her if she even asked again.