Luxe cashmere comes from the underbelly of goats living in the Gobi desert. When the goats molt in late spring, workers comb to remove the undercoat of superfine fibers from the belly. After cleaning and refining, the fibers are spun into yarn. Before you invest in a cashmere garment, check for loose fibers prone to pilling. Look for a heavyweight, tight knit and go for a natural, undyed color ranging from Chinese white to camel and brown hues. Never hang cashmere, always fold to prevent stretching.