BROOKS dare crossback run bra 2.o . size 36 A/B . neon yellow . perforations front+back for added breathability shell : 63% nylon/polyamide . 37% spandex/elastine lining : 72% nylon/polyamide . 28% spandex/elastine cups : 1oo% polyester washed 1x but never worn . hung on line to dry tried it on after washing it - too big smaller size very comfortable + no seams in mid-back when doing sit-ups or any back-on-floor/wall excercises unscented free+clear detergent . no dryer scent//products NONsmoking + NONpet home .