Lochaven’s marketing director, Heidi Daniel, said: “Warner Brothers, who make the Harry Potter films, got in touch with us and asked us to make the items and they were delighted with the quality.

“We’ve made the garments from then on and it’s quite an exciting story for our company. Not many people know where the jumpers, tank tops and cardigans are made.

“That’s quite amazing when you consider how hugely popular the films are and it’s certainly something for Lochaven to be proud of.”

He said: “We get e-mails from all over the world from fans of the books and films asking if they can buy one.

“Although there is no legal reason why we can’t, we don’t actually actively market them so they are pretty rare.

“Our quality and ability to produce relatively small batches in Scotland makes us fairly unique these days and that allows us to work within the film industry.

“The garments are very visible in the films and have become recognised as an integral part of Harry Potter. There is also a large Scottish connection with the films so it’s great to be a part of it.”