Possibly the most divisive of all knitwear (love them or hate them), turtlenecks (also called rollnecks) fade in and out of the fashion fray with such regularity, it’s safe to say that having a few in the closet is a smart move. The best thing about the mainstay might be versatility. Chunky or fine, they look good tucked into, or worn over trim skirts, ditto for denim and add a definite air of authority to outerwear and blazers. Playing with proportions is easier than with other looks. A chunky top over slim bottoms works as well as a super fitted piece tucked into narrow jeans or voluminous trousers. They’re the style equivalent of rice.