I found these first at Macys. Only 1 single pair, in a size medium. Eyeballing then, it looked like itd fit, but they did look big. I bought them then scanned on Amazon to purchase more and started reading reviews. I went a size smaller. So I am 53, 185lbs and almost 5 months pregnant. I know everyone holds their weight differently, but I do have a booty, and Small fits. Mediums are on the bigger side but Im hoping theyll shrink in the wash, or theyll fit when Im 9 months pregnant. I just wish these panties were available with Prime shipping. I had to wait 5 days. I didn't want to order more because I wanted to make sure these fit. Theyre comfy.