Prince William and Kate Middleton attended a charity gala tonight at St. James's Palace in London. Kate wore a draped, silvery-gray chiffon dress by Jenny Packham — one of the her preferred designers for high-end events. She added a poppy brooch in honor of Remembrance Day tomorrow, and in some photos, she posed again with her hands on her stomach (!!!). See a photo of the full-length look in our extensive guide to all the Kate's outfits, the Kate Middleton Look Book.