35 photos that show how Kate Middleton's style has evolved through the years

Getty/Chris Jackson; Eddie Mullholland/Pool; Kevork Djansezian

Kate Middleton always looks put together.

Kate Middleton may not have been born into royalty, but she certainly knows how to look regal.

Middleton, who became the Duchess of Cambridge when she married her college sweetheart Prince William in 2011, has lived much of her adult life in the public eye. In that time, she's become a major fashion icon. In fact, her style is so beloved, she's created a phenomenon called the Duchess Effect: When Kate wears something, it almost instantly sells out.

In honor of her 35th birthday on January 9th, here's a look at 35 of her most iconic ensembles.