She's Number 10's Fast Lady! Samantha Cameron runs errands in a very on trend pair of Nike Air Max

She spent most of her recent holiday in Cornwall barefoot. But back in London and back to business, Samantha Cameron today chose to slip into some footwear that would let her hit the ground running. Literally.
The PM's wife stepped out today in a snazzy pair of Nike Air Max trainers, pairing the trendy £85 sport shoes with black trousers and a casual top.

Casual: Samantha Cameron talks with Lord Feldman outside Downing St this morning as husband David held a cabinet meeting

Of course, SamCam is no stranger to keep-fit wear. Both she and David are frequently seen on their bikes cycling around Westminster or working out with their personal trainer Matt Roberts.
But today, it looked like Samantha was wearing the shoe for aesthetic reasons rather than for any sort of sporting activity.
And she wouldn't be the first either.  The Air Max is no longer a shoe that is reserved for sport. Since its release in 80s, the chunky-soled trainer with its distinctive air pocket has been a stalwart in the Nike stable, with new models released regularly.

Just doing it! Samantha Cameron stepped out in a brand new pair of Nike trainers today

But this year the Air Max has really soared in popularity.
Helped along by the recent surge in 80s and 90s fashions, the Air Max has been seen on the feet of everyone from Rita Ora and Rihanna to Barack Obama.
Now it would be a crime to buy them in white when there are myriad finishes, patterns and prints available.
Proving she has her finger firmly on the fashion pulse, SamCam went for camouflage with neon orange flashes.

On trend: Samantha Cameron's trainers are the £85 Nike Air Max in Thea print

Presidential seal of approval: Even Barack Obama has been spotted sporting the retro trainers