The newly minted Duchess of Sussex wore a fit-and-flare, bespoke black dress for the 100th anniversary celebrations of the Royal Air Force (RAF), Harper's Bazaar reported. "Her wedding dress was quite loose".
Wife Camilla, 70, had to step in and assist the monarch who needed his gloves in place before walking out of the venue with the rest of the royal family.
When it came to her accessories the newly-wedded royal stuck simple black accents in the form of a suede shoe and an oversize leather handbag.
But Meghan, Britain's new Duchess of Sussex, doesn't play by the normal fashion rules as she has been displaying a number of global brands during her myriad recent public appearances.
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Meghan and Harry have a busy day ahead of them, with a visit to Croke Park, the home of Ireland's largest sporting organization - the Gaelic Athletic Association.
Photos from one part of the visit caused a bit of a stir, with many pointing out the ridiculous quantity of water bottles - all 14 of them - laid out for the duke and duchess.
Meghan Markle and Prince Harry attend a reception at Glencairn, the residence of Robin Barnett, the British ambassador to Ireland.
According to a press release from Kensington Palace: "The Duke and Duchess will also have a moment for reflection at the Famine Memorial, before visiting EPIC, the Irish Emigration Museum, telling the story of the 10 million Irish people who have emigrated across the world".
The royal couple will meet Irish President Michael Higgins and the head of government, Taoiseach Leo Varadkar on their first visit outside the United Kingdom since their wedding in May, the Irish Times reported.