Just call this look a little bit of glam athleisure.

Proving that she can pull off a casual fall fur moment even with white trainers, Mary-Kate Olsen stepped out into the streets of New York City Monday, rocking black sweatpants and a gray sweatshirt tucked under a belted, ankle-length, furry, champagne-hue coat.

To take her look up a notch, the fashion mogul, who wore her blonde locks sleek and parted down the middle, shielded her eyes with round shades that coordinated with the hue of her fluffy coat as she made her way through the city in the midst of Fashion Week.

And she even cracked a smirk (a rare photographed occasion for the Olsen twins) while she strolled out of a building.

There’s no doubt Olsen is managing a busy schedule during NYFW, so it makes sense to sport comfortable duds on the go.

RELATED: Mary-Kate Olsen Just Cracked a Rare Smile

Plus, when you can hit the Big Apple in a fur and sneakers and work it, smiling is just what you do.