France's first lady Carla Bruni divided opinion recently by hosting a state dinner wearing a figure hugging dress without a bra. Some envied her elegance and confidence; others saw it as a fashion faux-pas. So when, if ever, is it ok to banish the bra? Do some dresses or occasions demand it? And can any bosom carry it off? Jane is joined by Sarah Vine, beauty editor at The Times and Lorraine Candy, editor of Elle magazine.