I have an Adidas sports bra, I think $34? that I like from Nordstrom. I bought it there because of their free shipping and easy returns. I also have some yoga crop leggings, $25? from the Gap. I bought them there because they almost always have some kind of 30% or 40% sale and because Gap owns fancy Athleta so they probably more or less know how to make a legging. I just wear whatever I’m willing to sweat on (sorority shirts or random freebies) over said sports bra.