Isabel MarantImaxtree

The celebrity-favorite label Isabel Marant presented a sporty, cool-girl collection during Paris Fashion Week today. The designer paired bright knits with washed denim, all made with ultra soft, worn-in fabrics. Patchwork covered dresses and jeans, while jersey tie-dye jackets and track pants came in bright, cheery colors. For evening, she created sexy body-conscious minis in dark gunmetal gray and chunky knit dresses, and finished each look with sexy single-strap sandals with ankle bands. See some of our favorite looks from the spring 2012 lineup in the gallery.

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— Violet Gaynor