Super niche, but these are SO good under leggings for the gym. They lay completely smooth with no visible lines, so nothing shows through even with fitted activewear. seamless underwear, no show underwear, gym essentials, workout underwear, leggings underwear, activewear essentials, women’s underwear, invisible underwear, fitness favorites, workout basics, annabrstyle LTKOver40 LTKootd LTKActive