Barefoot and with casual hair during the Diamond Jubilee tour last year, the duchess remained a style icon.

Kate Middleton style gallery

A style file of pictures of Duchess of Cambridge, Kate Middleton's style.

By Marilynn McLachlan

As the pregnant Duchess of Cambridge celebrates her 31st birthday today, she continues to wow the Weekly team with her elegant style. We’ve put together a gallery of our favourite picks of Kate’s style.