The turtleneck is back! For people who think it's too complicated to look stylish and keep cozy, look no further than one of the season’s warmest crazes: the turtleneck sweater. This classic necessity has been seen on the necks of many fashion icons including Audrey Hepburn, Marilyn Monroe, and Jackie O, and it is now everywhere from the runway to the streets. Either chunky, baggy, or symmetrical, we love all kinds of turtlenecks. Click through our slideshow to see the eight must-have turtlenecks of the season.