You'll Love Kate Middleton's Winter Style — but Wait Until You See Her Diamonds

Sunday morning definitely doesn't mean athleisure for the Duchess of Cambridge. To celebrate the 75th anniversary of the RAF Air Cadets at a church ceremony in London on Sunday, Kate Middleton showed her elevated good taste once again.

Kate brought back her favorite baby-blue Alexander McQueen coat, a piece from her collection of very colorful outerwear. The Duchess of Cambridge finished her look with heels, a bow-adorned hat by Lock, and the sparkling Air Cadets Dacre brooch.

In December, Kate was made honorary air commandant of the Air Cadets, an honor that was formerly held by Prince William's grandfather Prince Philip. Sunday's appearance was Kate's first in the new role and, surely, one to remember.