We've seen leather backpacks, Chanel backpacks and Ashish LED backpacks tentatively filtering onto the runway and into stores.
But until now, we hadn't seen many celebrities rocking the bold trend. After all it's quite a leap ditching your Givenchy lockit tote for something as common as the rucksack.
Amanda Seyfried was brave enough to take on the challenge, and obviously pulled it off.
The actress donned a tan leather backpack as she landed in Japan to promote her new film, A Million Ways to Die in the West.
Carrying on with the casual theme, she paired it with a slouchy jumper, black leggings and trainers. Finally an achievable (and comfortable) celebrity airport style.
Other celebrities and their airport style
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