Whether you consider yourself to be a social butterfly or more of a wallflower, the arrival of December requires having an arsenal of holiday party-ready attire at the ready. Work events, cocktail parties with friends, traditional family get-togethers, and other seasonal soirees start crowding the calendar, and with each occasion comes the opportunity to don your festive best. Here, we’ve rounded up 12 dresses that are perfect for the holiday social circuit. From rich velvet sheaths to classic black frocks to shimmery sequined numbers, these chic options have you covered throughout the season.