Sales boss Eugene Culhane said Derbyshire company Pretty Polly is "delighted" that celebrities like Beyoncé and Rihanna wear the company's tights.
He said: "I think it's the result of a lot of hard work and a lot of time spent in the United States, getting our products onto celebrities, getting our products into the right retail environments, and spending a lot of time on social media."
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Rain moving east, sunshine and showers Thursday.
Rain overnight, heavy in places.
The oldest trophy in English football has travelled to Alvechurch Football Club, ahead of the team's match against Hanley Town this weekend.