Red Track Pants Are the Hottest Trend Right Now -- Just Ask Kendall Jenner and Bella Hadid!

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Models have been making bold trends much more comfortable lately.

Over the past week, four It Girls stepped out in cherry red track pants, and not a single one of them was hitting the gym. Athleisurewear has been big in the fashion world for a while now, but dressing up gym gear like this is a newer take on the trend, and these ladies are pulling it off well.

WATCH: Bella Hadid Trades Sexy Leather Outfit for Vintage Blue Velvet in Paris

Bella Hadid kicked off the look during Paris Fashion Week last Wednesday, stepping out in a very '90s ensemble that would make the ladies of TLC proud.

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The next day, Hadid's BFF, Kendall Jenner, also rocked all-red everything for the Off-White fashion show: a blazer, cropped sweater with the brand's logo written in tiny white print and shiny track pants, which she accessorized with oversized square earrings and white square-toe Kurt Geiger boots.

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WATCH: Kendall Jenner Rocks Racy Jean Ensemble in Paris

Taking a page out of Jenner's book, Karrueche Tran rocked the same blazer and track pants for Sunday's iHeartRadio Music Awards. The big difference here was the styling, as Tran bared her abs by pairing the combo with a scarlet bralette.

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And Karlie Kloss was the most recent model to rock the red gear, putting her own spin on business-casual attire by pairing her side-zipper pants with a long black blazer, white tee and and sneakers.

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MORE: Nicki Minaj Pulls a Lil Kim at Paris Fashion Week

If you were looking for an excuse to dig out your old Adidas breakaways, these gorgeous gals just gave you the green light. Be sure to thank them later -- and this decade, don't forget to wear heels, too.

Jenner and Hadid have been all over the runways during Paris Fashion Week. Click through the gallery below to see some of the Keeping Up With the Kardashians star's biggest catwalk moments.

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