(2 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.) Cameron Diaz Golden girl. Diaz shimmers in refined metallic knit at the William Rast spring 2007 “Street Sexy” show in L.A. on Oct. 17.