These black panties are super comfortable for working out in, which I did do earlier with a good sweat and thigh rub going on! They're part polyester, Lycra/spandex. I was in them all day at work, the gym, a self-finger session, and just chilling on the couch in just the undies and a tshirt. I'm a big girl and the scent is noticeable from my fingers as I sit here. Picture of some white stuff I found in them for you or maybe next time? The actual panty shot are in my profile picture.