Duchess Kate at Olympic art exhibit

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Kate, Duchess of Cambridge, right, listens to a speech during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London. The duchess is a patron of the National Portrait Gallery.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, reacts as she talks to photographer Nadav Kandar, right, and 100-year-old portrait sitter Diana Gould during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, is shown around by the director of the National Portrait Gallery, Sandy Nairne, during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, listens to a speech during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, chats with photographers Johnathan Anderson, third right, and Edwin Low, second right, and Paralympian Alexandra Rickham, right, during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, chats with to former Paralympian and London 2012 Ambassador, Tanni Grey-Thompson during her visit to the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, chats to photographers Johnathan Anderson, third right, and Edwin Low, second right, and Paralympian Alexandra Rickham, right, as director of the National Portrait Gallery, Sandy Nairne, left, looks on during her visit to the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, visits the "Road to 2012: Aiming High" exhibition at the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, chats with photographer Jillian Edelstein and drector of the National Portrait Gallery, Sandy Nairne, left, during her visit to the National Portrait Gallery on July 19, 2012, in London.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, is being shown around by Director of the National Portrait Gallery, Sandy Nairne, during her visit on July 19, 2012.

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, talks to Sandy Nairne, director of the National Portrait Gallery, following her visit July 19, 2012. She was visiting the exhibition entitled "Road to 2012: Aiming High."

Pictures: Kate's royal wardrobe

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Kate, Duchess of Cambridge, is being shown around by director of the National Portrait Gallery, Sandy Nairne, during her visit to the "Road to 2012: Aiming High" exhibition at gallery in London, July 19, 2012.

Pictures: Kate's royal wardrobe