When winter “wants" become winter “needs", the equation leads to winter “musts". Forget the dull sweaters we once wore and focus on the ones with a sexy twist. Sweaters with open backs are necessary in a day-till-night winter outfit. Thick cardigans worn on naked skin heralds a new era for the “how to wear your woollen” technique. Finish the outfit by wearing a belt on top of your favourite wool and high on the waist. Remember: this year, your sweater is included on the club’s guest list!