You might not know Jack Guinness, but you've probably seen the great big bushy beard on his face before. The model/DJ (yep) has appeared in campaigns for Nicole Farhi, Paul Smith, Barbour and Brioni, and always pops up in best dressed lists, and with good reason.

Here he is at the swank opening of The Glamour of Italian Fashion exhibition at Victoria & Albert Museum in London, ticking all the boxes. His white double-breasted blazer is both stylish and fun, and he's added a touch of personality with a white polka-dot scarf and buttoned up white shirt. It's a nice twist on formal and a great way to wear the double-breasted trend.