I don't know how I lived without this bra. I was using something else while pumping, and it just wasn't working anymore. First, I love how pretty this bra is. I feel sexy and feminine, which I haven't felt in months. I was a 34B before pregnancy, then a 36B/C after baby. I ordered a small, and it fits perfectly. The strap in the back has lots of snaps to make it tighter or looser. I even slept in it last night for easier middle of the night pumping, and it was so comfortable. My Ameda flanges fit in the opening perfectly. The material is very thin, and depending on the shirt you're wearing, the nipples would show through. I'm wearing reusable nursing pads today, with a loose top, and so far so good!