LONDON — British accessories brand Aspinal of London is aiming to make an impact throughout the high summer season with a six-month collaboration featuring Eliza and Amelia Spencer, the nieces of the late Princess Diana.

As new brand ambassadors, the Spencers on Monday appeared in the brand’s latest ’60s-inspired campaign, shot in a rustic cottage near Aspinal’s headquarters in southwest Surrey, England.

Over the coming months they will also sport key pieces from the brand’s “The Great British Season” collection at major society events like Royal Ascot, Wimbledon and the Serpentine Summer Party.

“We have been wearing the brand for several years. Aspinal has a beautiful bag for every occasion and has regularly been our handbag accessory of choice at many red carpet and formal events,” said the sisters, who were born in the U.K. and raised in South Africa. They relocated to the U.K. full time in 2021.

“We are excited for the advertising campaign to launch, as the team has created something very cool and iconic. And we are also looking forward to some of the other exciting moments that will be shared later this year,” they added.

In an interview, Iain Burton, chairman and founder of Aspinal of London, said the Spencer sisters evoke the spirit of classic English icons from a bygone era, yet their refined English elegance feels modern and aligns with Aspinal’s brand DNA.

“We’ve had a blossoming relationship with them in recent years, and 2025 marks the perfect moment to make our partnership official. They bring fresh energy to our heritage, helping us connect with new audiences who value timeless style with contemporary relevance. It’s a natural evolution for the brand as we continue to grow both in the U.K. and internationally,” he added.

He said the brand is betting on the structured and vintage-inspired aesthetic, as depicted in the new campaign in which the Spencer sisters can be seen slouching on a sofa, walking in the garden with a dog, and filming each other with a Super 8 Camera in a vintage Jaguar.

“Our best-performing styles are always the most timeless. Everlasting investment pieces such as the Mayfair, London Tote and Lottie continue to resonate strongly with our customers around the world,” he added.

The brand attracts a broad spectrum of customers ranging in age from 18 to 80, men and women, Burton said.

“Aspinal is sometimes referred to as London’s best-kept secret, and our flagship store in Regent Street remains a regular destination for international visitors from around the world to explore and rest in our members’ lounge, also loved by celebrities, royals and stylists in the know,” Burton added.

According to recent Companies House filings, Aspinal of London saw revenues rise 9 percent to 38.6 million pounds in the year ending March 31, 2024, while adjusted EBITDA for the period registered a 27.4 percent fall to 5.3 million pounds.

The company said the drop was caused by a substantial increase in marketing expenditure deployed in seeding new international markets.

Burton touted that 2025 marks a new era for the brand.

“Their campaign is just the beginning, we have much more from the Spencers in planning and exciting creative collaborations with the best of British design talent planned for later in the year,” he added.

In the filings, the brand noted it will continue to develop and grow sales in domestic and international e-commerce channels, enhance brand awareness, overall brand value and customer perception with marketing initiatives, and add product categories, like the fragrance line introduced last year, to generate future growth.