Kate Middleton and Prince William ventured out on August 30th to thank well-wishers in Anglesey for their support, for the first time since they whisked their newborn son away to his home.

Baby George stayed home, but the Duchess looked slim as ever (with ombre hair!), stunning in a Zara top, Paige denim jeans and Ralph Lauren jacket. She looked casual yet chic, perfect for a day outside. It's been just over a month since she gave birth and the new mom looks absolutely perfect. How does she do it?! We've heard that her quickly slimming body is thanks to yoga, breastfeeding and -- of course her naturally slim frame bouncing back.

Kate was spotted at the grocery store earlier this week in another cute and casual outfit, but we think its quite sweet of her to step out before her first scheduled appearance on September 12th, in order to show her love for the town of Anglesey. William fired the starting gun at the Anglesey Ring O'Fire Coastal Ultra Marathon and the pair will enjoy the afternoon.

Click through the gallery above to see more photos of Kate's outfit!

Photo Credit: Splash News