As the fourth season of The Crown reaches Netflix, all eyes will be on the wardrobe of Emma Corrin, who plays the young Diana Spencer. Shoulder pads and flowing skirts, puffed sleeves and piecrust collars. It’s going to be an 80s-fest bound to trigger a surge in desire. And nobody is in a better position to deliver it than British designer Anna Mason.

Anna Mason London was launched by the half-British, half-Swedish designer in 2012. It was a ramping up of her business, which initially sold pretty yet distinctive clothes via friends’ houses to a growing group of in-the-know devotees.