Thousands of people queued for hours to get their hands on trainers designed by rapper Kanye West.
Shoppers were waiting outside stores from midnight to grab a pair of Adidas Yeezy Boost 350s.
Within minutes of their release at 09:30 BST, the £180 shoes were being resold online for double the price.
Security guards were brought in to manage the queues in Birmingham and websites including Foot Locker and JD Sports crashed due to demand.
Marketing professor Heiner Evanschitzky said the mix of celebrity, exclusivity and “a certain clientele really liking the experience of queuing with like-minded people” was behind the frenzy.
In Birmingham, long lines snaked outside of the Size shoe shop, on Lower Temple Street.
One man in the queue told the BBC he had already been offered £300 by a friend who could not get to the store.
Similarly long queues were seen outside Foot Locker in The Bullring, with a security guard urging people not to rush when the doors opened.
Long lines were also reported outside Foot Locker in Oxford Street and Size in Carnaby Street, London, and in Leeds, Manchester, Edinburgh and Dublin.
Professor Evanschitzky, from Aston Business School, said that while the limited nature of the stock and celebrity branding had an impact on sales, people sometimes queued for the experience.
“We have found in studies, people who go out shopping to have an experience, the product is conduit for the experience,” he said.
“A certain clientele really like the experience of queuing with like-minded people, talking about fashion.
“In a broader sense, retailers are able to choreograph product launches in such a way to get people out there.”
Consumer psychologist Kate Nightingale added that the demand was down to the trainers’ exclusivity and that they made shoppers feel “special”.
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The trainers are designed by rapper Kanye West in collaboration with Adidas and launched in 2015.
A rare pair can cost thousands of pounds and they are one of the most sought-after trainers in the world.
They are usually only released on certain dates at specifically chosen locations.
JD Sports said, since their inception, the Boost line had continually sold out instantly.
Shopper Chris Shaw said: “The demand in Glasgow was crazy. Arrived at 04:00 to queue and never got any.
“Only people that got them this morning were the ones that slept overnight. Then they walked down the queue trying to sell for three times the amount.”
Sellers on eBay had pairs of the trainers listed for up to £480 within an hour of their official launch.
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