Oh we do love a royal bargain.

Happily, the Duchess of Cambridge is quite fond of one too.

Kate Middleton sent fashion followers wild over the weekend when she appeared at a polo match wearing a simple striped, off-the-shoulder dress from Zara.

The royal was seen playing with Prince George and Princess Charlotte as their dad Prince William took part in the polo.

Catherine, Duchess of Cambridge with Prince George of Cambridge and Princess Charlotte of Cambridge at Beaufort Polo Club whilst Prince William played polo. #polo #princesscharlotte #royal #princegeorge #katemiddleton #duchessofcambridge pic.twitter.com/LY8efSuhL4

— Mark Cuthbert (@markacuthbert) June 10, 2018

The pretty midi dress is not only an affordable €49.95, but it’s also still in stock on the Irish site, with two sizes available and more sizes on the way after an initial sell-out.

Belted at the waist with an A-line silhouette, it can be dressed up with heels or worn with flat sandals for a chill Saturday’s shopping.

Not that K Middy is likely to be giving it another turn any time soon.