Anja Rubik in Saint Laurent at the Vogue Foundation Gala in Paris, France, July 2016. Photo by Getty Images.

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Who: Anja Rubik.

When: Tuesday, July 5.

Where: The Vogue Paris Foundation gala at the Palais Galliera.

What: A Saint Laurent tux with a tasseled YSL clutch and black pumps.

Why: The competition for best women's tux is a crowded field, but Anja Rubik takes the prize. The cropped, ankle-length pants and oversized tuxedo jacket modernize a classic, elegant look. Shirtless is the way to really do a tux.