When our favorite edgy It girls step out wearing refined, super-classy ensembles, we notice. Why? Because when ladies we know well (thanks to their unfiltered Instagram feeds), hit the red carpet in an unexpected choice it inspires us to also branch out. At last night’s Chanel party in London, Ms. Delevingne traded her go-to bad girl style for a prim and proper Chanel cocktail look and caught the attention of our EIC Rachel Zoe who waxed poetic about Cara’s take on French-girl chic. If anyone can make a tulle babydoll dress, bow-detail heels and a satin choker feel cool, it’s Ms. Delevingne. Add a red lip, effortless topknot and glossy black mascara and you’ve got an elegant look to try at your next formal event be it a wedding, gallery opening or to have on deck for fast-approaching holiday season.