Leighton Meester (aka Blair Waldorf) nails the urban military look on the set of Gossip Girl in a pair of olive green cargo pants (hers are by Vince), cream top (is it a vest, is it a jacket? No matter, it's perfect!) and super-stacked sandals. The ubiquitous Mulberry Alexa bag hangs from her perfectly-poised shoulder - further proof that this is THE bag to splash out on. Get her top-to-toe look here.