THIS BATHING SUIT IS PROBABLY THE BEST SUIT EVER!!! I HIGHLY RECOMMEND THIS PRODUCT AND if you have a medium to big butt, just get what your bust size is. Like I am a small up top and i was super confused on what to get on the bottom because I was looking at the charts and nothing seemed to be right. So I just went for a small all around. I am 118 lbs. I am 5'3". And it only took about a week and a half to get to me. The colors are super fun too & the material brand is from Cupshe (does not feel cheap). I hope that helped!