Moms Who Wear Leggings - Nontoxic Fall Leggings Review

I'm a mom/lifestyle editor reviewing nontoxic leggings for fall - what do you want to know?! Hi!! I'm a fashion editor for a sustainable lifestyle publication and am testing a bunch of nontoxic leggings for fall (I'm also a mom and live in leggings). I'd love to hear from others—what do you care about when shopping for leggings? Are you paying attention to things like PFAS, synthetic fabrics, certifications, dyes, etc. or just wanting something that's comfy, flattering, and holds up? What would be helpful for you in a review? And do you have fav brands (or ones you stay away from)? Thank you all!!!