Oversized or boyfriend style cardigans are a popular choice. Wear them with jeans and a tee for a casual weekend look, or try them over a skirt or dress for a romantic look. A simple way to update your cardigan is to team it with a fashionable scarf. The right scarf can work wonders. Hitting anywhere from below the hip to knee-length, the chunky oversized sweater is the perfect cozy option for winter days.