I have enough of these (all black) to wear one 5 times a week at the gym for almost two weeks.  This bra has some padding which gives you a nice shape and prevents "headlights" from shwoing through.  On a few of them I've had to take scissors and trim the lump on the back of the shoulder straps on the back where it loops through the little ring and is attached back on itself.  So far nothing's unraveled on me and I wash them every time I wear them.  Before I trimmed the lumps up I'd just have this annoying burr on my back for several hours and then I'd forget to trim it off when I got home.  This bra is not super stretchy and you might need some help getting out of it the first few times you wear it.