sweat proof workout clothes

does anyone have any tried and true sweat proof clothes that are made with sustainable materials- or at least more sustainably than the big brands out there? i’m doing heated yoga, so i’d appreciate any recommendations you have if you also do something similar!
as much as I wanted to love girlfriend collective, my leggings from there fit super weird, don’t stretch, and are visibly soaked by the end of the class. i have polyester clothes from other popular brands and while the fit is better- they tend to hold a smell that is hard to get out.