The mum-of-one switched the heels for trainers, slipped on her sports clothes and covered up with a fitted leather jacket on Wednesday (11 February) while visiting Barry's Bootcamp in the city.
Kim, 34, is known to be a long-time fan of the workouts at Barry's, which can burn up to 1,300 calories per hour, according to the company. Wow.
The Keeping Up With The Kardashians star is in New York with husband Kanye West and their daughter North, one. They flew out to the East Coast immediately following the Grammys ceremony in LA on Sunday night.
Kim's been busy since landing. Already she's managed to launch the new Kardashian haircare range, attend a party for pal Simon Huck's new publicity company, and drum up interest in Kanye's new Adidas collaboration by casually posing outside the store in SoHo.
After her gym class yesterday, she was pictured out and about with little North in Manhattan. North was clad in a huge furry coat that practically swamped her tiny little frame.
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