Best Celebrity Summer Fashion 2012

Why she's a Summer style star: Whether she's greeting foreign diplomats in a modest satin blue Christopher Kane coat-turned-dress, celebrating the Diamond Jubilee in white Alexander McQueen, or attending a polo match in a romantic Libelula dress (at left), Kate Middleton knows how to not only dress for any and all occasions, but she also does so in a fun mix of upscale and fast fashion pieces. Her girl-next-door take on styling — and trust us, the Duchess of Cambridge knows how to put a new spin on a repeat outfit — is totally refreshing. This Summer, Kate has treated us to everything from gorgeous Jenny Packham gowns to a casual preppy Olympic-bound ensemble, featuring her favorite navy Smythe blazer; thus, she joins the ranks of our Summer style elite.

Her Summer staples: Stuart Weitzman cork wedges and espadrilles, gray sheaths from the likes of Roksanda Ilincic and Joseph, her navy Smythe blazer, J Brand skinny jeans, and a plethora of coatdresses.