The age-old classic sweater is a versatile, essential part of the well-dressed man’s wardrobe. A cross between a vest and sweater, it’s ideal for layered comfort in cooler temperatures and gives you a quick transition from casual to dressier. Wear a t-shirt under for a weekend or snazz it up with a dress shirt and tie for Sunday dinner at the inlaws. Cardigans can go almost anywhere — adding color, texture, and always comfort.