The Best Activewear Brands and Workout Sets for Fall 2025

I’m on a new fitness journey, and I’ve found that a cute workout set is a big motivator for myself. This set me off on a massive shopping spree to find the cutest workout sets available. And since fall has snuck up on us, and celebs everywhere are bringing back the flared leggings, and spring-class to errand ‘fits, I’ve rounded up 8 of the coolest activewear brands.

So promising, if you’re going to wear leggings in fall 2025, make them from one of these fashion person-approved brands. Shop the best workout sets, the best flared leggings, and the best activewear brands backed by celebs and fashion people below.

Kendall Jenner posted on IG in the khaki Adanola Ultimate Leggings last month, and already the fall-ready finish has become a fashion insider favorite. The deep khaki isn’t the only non-black shade to rise in popularity this fall; celebs are also backing beige, chocolate brown, and heather grey. Follow Kendall’s lead and pick up a pair of the best-selling leggings to experience the buttery-soft fabric.