Getting comfortable! Kim Kardashian swaps sexy superhero catsuit for cosy sweats as she steps out in New York.

She took New York City by storm in a sexy superhero catsuit.

But Kim Kardashian swapped out the skin tight ensemble for something much more comfortable later that same day.

The reality star, 36, was spotted looking stylish and sporty in a black tracksuit top and sweatpants.

Her straight, raven black locks were parted in the center and fell stylishly behind her back.

And her complexion looked incredible as usual with mascara, blush, and a nude swipe of lip gloss.

Kim wore a pair of strappy nude high heels and carried her ever-present phone as well. 

Her sister Khloe Kardashian was also spotted  in a noticeably different outfit from the one she wore earlier. 

Khloe wore black sweats, knee-high boots, and had a sweatshirt draped over her shoulders.

At one point during their outing, the stars stopped by a pizza parlor for a bite to eat.

Kim was spotted placing an order at the counter beside her sister, before leaving with a beverage in hand.

Earlier that day, Kim and Khloe were attending the Upfronts in New York to promote their long-running show Keeping Up With The Kardashians.

The outing came just days after Kim and Khloe joined their sisters at a Planned Parenthood clinic in Los Angeles to show their support for the medical service provider.

The outing was a surprisingly political move for the family, coming as the US Senate considered a healthcare reform bill which could slash funding to the women's healthcare provider.

Kim made her feelings clear with a heartfelt social media post calling PP 'amazing'.

'The House of Representatives forced through a bill that strips health care coverage from millions of people and raises health care costs, including Planned Parenthood patients,' she explained.

Khloe added: 'Learned so much. 2.5MM rely on PP for care -birth control, cancer-screenings, STD testing and so much more!#IStandWithPP.'