Catherine, Duchess of Cambridge stepped out for her first solo appearance wearing at London's National Portrait Gallery yesterday (far right) wearing a Jesire coat dress in heather gray—a neutral hue Middleton happens to adore. Previously, she's slipped on an ash chiffon Jenny Packham gown (far left), a dove gray embroidered coat paired with matching pumps (center left), and a charcoal Catherine Walker shift (center right). Tell us: which gray look is your favorite? Vote in the poll below!
Plus, see Kate Middleton's most memorable outfits.