(1 of 8) Celebs in KnitsThese aren’t your grandma’s handmade sweaters. This season’s knit is big, beautiful, and decidedly luxe—and don’t these girls know it. They’ve been layering on the luxury thanks to designers like Ralph Lauren and Michael Kors. Wrapping up warm has never been so stylish. (Sorry, Grandma.) Jessica Simpson Yep, she even manages to sex up a turtleneck. Simpson steps out sporting sheer, short, and skintight sweater style in New York City on Oct. 4.