The duchess wore a yellow broderie anglaise sundress on her recent South Pacific tour, and it has now emerged it was a piece specially-commissioned by Queen Elizabeth`s tailors, based on the royal`s own ideas. A source told Grazia magazine: "This dress was a piece commissioned by Kate. She likes to have a few pieces that are one-offs and that she has had some input in, so she asked the queen`s tailors for some help. "They worked on it together after she went to them with ideas of colour, fabric and style." Catherine - who was known as Kate Middleton before her wedding to Prince William - regularly wins praise for her fashion choices, and was recently named one of the best-dressed royals by Vanity Fair magazine. They said: "The former Kate Middleton is prim, proper, and infuriatingly dazzling, thanks to a year-round tan, bouncing blow-outs, some better version of Bobbi Brown than the rest of us have, and a decidedly un-English smile. For big events, the mice and bluebirds put Kate in the best British designers as befits a future queen of England, including Alexander McQueen, Christopher Kane, Burberry, and country staple Barbour."