I purchest a pair of nike air max trainrs and once i had worn them a few times all the bottom have faded away at the back and around the bubble it use to be a nice whit and now its a nasty faded grey coulor i have always worn nike air max they are my favirot trainer and i pay alot of money for them i am completly disgusted with them and has put me off nike altogether if something does not get done about this i will be takeing the matter further.