Finishing the look off, the stylish Duchess wore a pair of sunglasses and a white-and-black Madewell x Biltmore Panama hat, which is also sold out.
Unsurprisingly, all of the above pieces have sold out.
The 36 year old mother-of-one was accompanied by her husband Alexis Ohanian who was also dressed laid back in a pink linen shirt and some baggy chinos.
The polo has become the informal setting for royal partners to let their guard down and offers rare insight into their non-work behaviour.More news: Kevin Spacey facing 3 new sexual assault allegations in London
Angelina Jolie took a leaf out of Meghan Markle's fashion book overnight, when she attended a royal service in London.More news: Tina Turner's Oldest Son Dead at 59
They say Instagram gives us a glimpse (albeit, a very carefully crafted glimpse) into others' lives, well, see what you make of pre-royal Meghan's best deleted Instagram pics.
Meghan Markle is taking a break from her royal duties. Add Royal Family as an interest to stay up to date on the latest Royal Family news, video, and analysis from ABC News. Her dress' cowl neckline was somehow reminiscent of Meghan's collarbone-bearing Givenchy wedding gown. "I'd argue that's worth every penny".More news: Murray withdraws from Wimbledon