The new mum looked happy to be back at her day job as she attended a Sports Aid athlete workshop in Stratford.
Kate got stuck in with the youngsters and showed off her athletic skills in a game of volleyball. Wearing a simple outfit of skinny jeans, a striped top, smart blazer and navy wedges, Kate looked casual and comfortable as she chatted to the young Olympic hopefuls.
The Duchess of Cambridge is patron to Sports Aid, a charity that helps young athletes with their development by supporting them financially.
It is well documented that the Duchess was heavily involved in sport as a youngster and continued her love of keeping fit as an adult. At school Kate played in the hockey team and she took up rowing in her early twenties.
These photos show that Kate’s love of sports has left her with an amazing flat stomach. Impressive, considering she delivered baby George just three months ago.
After her wedding to Prince William in 2011, Kate came under scrutiny for her slim figure, with many people commenting that she was too thin.
With Kate now looking happy and healthy, it seems that motherhood suits Kate. Hopefully she has found the perfect balance between work and her new tot.