The apparel giant is going through a rough drawdown but still growing around the globe.Apparel is a hypercompetitive business. Going through boom and bust trends, the apparel shopper can switch habits on a dime, sometimes to the detriment of investors. Lululemon (LULU -1.72%) investors are feeling this volatility at the moment. The stock is off 43.5% from recent highs as of this writing due to a huge slowdown in its core North American market. Wall Street is worried about upstart competitors taking share in ...