The dress was by London-based designer ME+EM, which, despite being lesser known than other fashion brands, has dressed the likes of Emma Watson and Kate Middleton.

The Duchess of Cambridge wore a pink dress by the designer when she met five-year-old Mila Sneddon and her family during her and Prince William’s royal tour of Scotland last month.

The shirt dress was made of silk and cost £450.

Sophie also owns another dress by ME+EM, which she wore for a visit to Frimley Park Hospital on International Nurses Day 2021 on May 12.