This is a new purchase for Beatrice as she has not been seen wearing the white and yellow striped dress before.
The description for this dress says: “The signature Blythe shirt dress is a timeless style beautifully constructed in a plain weave cotton blend fabric.
“This fit and flare midi dress features a half elasticated waist for comfort and fit, side pockets and a removable obi belt.”
Princess Beatrice’s chic midi dress with elbow-length sleeves can be purchased by royal fans for £250.
Beatrice wore a black leather jacket over her dress and also wore some yellow high heels that featured a black toe.
These shoes appear to be a vintage pair of Chanel slingback heels in yellow leather that feature a black grosgrain.
The Princess of York styled her ginger hair in a curly fashion behind her ears and looked stunning in the warm May weather.
Princess Eugenie could not attend the Chelsea Flower Show on Monday as she is heavily pregnant and will soon be expecting her second child.
Her mother, Sarah Ferguson, previously claimed in an interview abroad that her youngest daughter will give birth at the end of May.
The two Princesses previously shared a flat in St James’s Palace, but since marrying their respective partners, the sisters no longer live together.
Although Beatrice still lives in St James’s Palace with Edoardo and their one-year-old daughter Sienna, Eugenie is said to live in Ivy Cottage with her husband Jack Brooksbank.
The couple have a two-year-old son August and occasionally spend time in Portugal, according to reports.