Guys, you can’t go wrong with a classic, preppy look. From Polo Ralph Lauren, this v-neck cardigan ($110) is made from soft and luxurious Pima and finished with genuine mother-of-pearl buttons. Dress it up by pairing it with smart slacks, a dress shirt and tie. Dress it down by wearing it with jeans and a casual Polo shirt. There are three colors to choose from: light grey, estate green and navy.