By Caitlin Petreycik
Updated Feb 09, 2012 @ 5:40 pm
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Credit: Bauer-Griffin; ROYAL PRESS EUROPE/startraksphoto; George Pimentel/WireImage; Rex / Rex USA

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 graya 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!