While Kylie liked Kendall's post, Kendall has yet to like Kylie's post. Kylie's post received 1.9M likes while Kendall's got ...

Plenty of celebs are on the workout clothes wave, too. Notable fashionable icons, including Elsa Hosk and Hailey Bieber, have ...

Kendall Jenner and Bella Hadid are also fans of the $59 cashmere-blend staple.