Fashion Zosia Mamet Steps Out in Her Best Look Ever Welcome to "Who Won Fashion Today," where we award the boldest, best dressed person of the day. Winning fashion doesn't necessarily mean you're wearing the most expensive, trendiest, or prettiest dress. Rather, we reward risk-takers—those that stay true to their personal style and make us go, "Now THAT is a LEWK." By Ruthie Friedlander Ruthie Friedlander Twitter Ruthie Friedlander is a New York-based writer, editor, and founder of the At Large Agency. She is also the co-founder of The Chain, a non-profit eating disorder support system for women in fashion and entertainment. InStyle's editorial guidelines Updated on March 16, 2017 @ 11:30AM Pin Share Tweet Email Photo: Krista Kennell/Patrick McMullan Zosia, Zosia, Zosia. Over the past few months you have been OWNING your wardrobe. You have officially found your personal style, which is a delightful mix of quirky and ladylike. Case in point: last night’s Monse dress, which you wore to the 2017 Whitney Biennial. Nicholas Hunt/Getty March 16, 2017 The actress wore a belted, off-the-shoulder, high-slit dress Monse dress to the 2017 Whitney Biennial. Nicholas Hunt/Getty Stress level when trying to figure out what to wear to an art gala, sponsored by Tiffany & Co., where every chic person in the tri-state area is in attendance? 10/10. You owned that step-and-repeat like a chic boss in a belted, off-the-shoulder, high-slit dress; one that is so original only Monse could put it together. VIDEO: Behind the Scenes with Zosia Mamet Topped off with your oodles of Tiffany jewelry? I’d say that’s a—ding, ding, ding—WINNA!