Millennials' “rebellious” fashion habits are taking a toll on traditionally successful retailers. Companies like Macy’s, Michael Kors, C .Wonder, and Abercrombie & Fitch face identity and financial crises as they’ve drastically lost their coolness factor and popularity over the past few years. The “atheleisure” trend, essentially wearing leisure or work out gear in places that previous generations would have dressed up, has potentially been a factor. Athletic retailers are thriving where “department and discount stores are struggling,” and the trend of being constantly casual is too comfortable to go away anytime soon. (Business Insider)