The 44-year-old royal has stepped out in some seriously chic polka dot dresses over the years, from designer Alessandra Rich pieces to premium high street labels, but if you want to get her look for less, Marks & Spencer is a good first port of call as they drop some stunning polka dot dress styles every single season. One of their bestselling pieces at the moment is a cotton polka dot dress, that I think Kate would love. It definitely has a touch of the Kate Middleton about it, as the white polka dot Alessandra Rich dress she wore to Royal Ascot in 2022 has quickly become one of her most iconic looks.