The piece: Asos Salon Organza Floral Prom Dress
The price: £85
Why we want it: Who wouldn't want to channel Betty Draper in early seasons of Mad Men? If you love vintage-inspired style as much as we do, you need this dress in your life! The perfect '50s prom shape has been dressed up with a shorter hemline and a painterly floral print that is absolutely perfect for weddings and formal events. The eternally flattering shape makes the most of many figures, and the pastels are a huge trend this season, so even if you've shied away from such feminine pieces before, now might be the time to give them a go. Add white cat-eye sunglasses and pastel stilettos for the full retro look, or dress it down with ballet flats and a ponytail.