Fashion over function for first lady Samantha Cameron

It seems that walking a mile in heels is an ordinary day’s work for the British Fashion ambassador.

Clad in three-inch high Topshop strappy sandals, effortlessly elegant Samantha Cameron carried out a mile-long charity ‘Fashion Walk’ on Tuesday.

The wife of David Cameron was joined by British designers Sarah Burton, Erdem Moralioglu, Peter Pilotto and Christopher Kane for the launch of Save The Children’s Born to Walk Tall campaign.

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Dr Hajara Kera, a midwife based in rural Nigeria, also accompanied fashion's first lady on the walk.

“It’s heartbreaking that eight million children under five die every year because there is no doctor or nurse nearby to give them treatment,” Samantha said.

“The mile we’re walking is dedicated to the health professionals who make that journey to save the lives of children.

“Let’s hope we can inspire others to walk a mile for the Born To Walk Tall campaign.”

Samantha teamed her monochrome heels with a sleek Joseph trouser suit and a Save the Children t-shirt.

The other participants who completed the walk from 10 Downing Street to Somerset House opted for comfortable flats.

Sarah Burton, the designer of Kate Middleton’s wedding dress, had to dash off to Paris to put the finishing touches to her Spring/Summer 2012 collection for Alexander McQueen.

London Fashion Week kicks off on September 16.