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NUKU'ALOF, TONGA - OCTOBER 25: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex, shoe detail, as they arrive at Fua'amotu Airport on October 25, 2018 in Nuku'Alofa, Tonga. The Duke and Duchess of Sussex are on their official 16-day Autumn tour visiting cities in Australia, Fiji, Tonga and New Zealand. (Photo by Dominic Lipinski - Pool/Getty Images)

NUKU'ALOF, TONGA - OCTOBER 25: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex, shoe detail, as they arrive at Fua'amotu Airport on October 25, 2018 in Nuku'Alofa, Tonga. The Duke and Duchess of Sussex are on their official 16-day Autumn tour visiting cities in Australia, Fiji, Tonga and New Zealand. (Photo by Dominic Lipinski - Pool/Getty Images)