The “Suits” actress exited a spa wearing Nike sneakers.
The actress will join her boyfriend Prince Harry at the ceremony.
It was a rare public outing for the stylish couple.
The royal trio supported their Heads Together mental health services charity campaign.
A royal insider noted, “it wouldn’t be a surprise if the couple got engaged later this year.”
You might be able to spot them on various points in the marathon route.
The actress favors brands such as Sarah Flint, Charlotte Olympia and Kamik.
The Duchess of Cambridge showed off her athleticism during a training event for the London Marathon.