The Duchess of Cambridge headed to school today in a brown and beige bird print dress and matching brown boots! For her trip to Rose Hill Primary School in Oxford, England to support the children's art therapy organization The Art Room, the royal chose a button-front patterned look by Irish designer Orla Kiely. The piece was on sale for $257 on Kiely's website, but has since sold out. The Duchess accessorized with a pair of brown boots by Aquatalia, available for $398 at nordstrom.com in both brown and black options. See more of Kate Middleton's best outfits by clicking through the gallery now!