It's summertime, our wardrobes are full of light and flowy dresses and, oh, yes, the British royals are playing polo again. 

Specifically polo in aid of charity, as Princes William and Harry took part in the King Power Royal Charity Polo Day for the Khun Vichai Srivaddhanaprabha Memorial Polo Trophy, with funds going towards more than 15 charities supported by the princes. 

A family day out. Photo: Getty

The match was certainly a family affair, as the princes were joined by their wives and young children. While royal watchers speculated on whether they would repeat their "doubles" appearance at Wimbledon this year, the Duchesses shared the day with each other, looking every inch the stylish pair. 

Meghan arrived in typical style cradling two-month-old son Archie Harrison Mountbatten-Windsor, making this his first appearance in public and the second time we get to see him in a week. 

With her hair falling in effortless waves and with minimal makeup, Meghan looked radiant and naturally chic, wearing a loose-fitting olive green linen dress by Lisa Marie Fernandez and dark gold-rimmed Stella McCartney aviator sunglasses. 

Continuing her flawless fashion streak of late, Kate once again went with the colour pairing of pink and red that she wore at Archie's christening last week, stunning in a midi length L.K. Bennett dress and vibrant cherry red Mulberry bag. 

The Duchess has worn this colour pairing often, and it's perfect for summer. Photo: Getty

Paired with her Castañer espadrilles - her shoe of choice this summer, it seems - and her classic bouncy curls, it made for a charming summer look. 

The families seemingly had a ball mingling together on the grass, with one-year-old Prince Louis pulling funny faces at his aunt and trying on his mum's Rayban sunglasses, while four-year-old Princess Charlotte played with Prince George, who turns six on 22 July.