Seriously. Follow the size chart guidelines. I typically wear a small or extra small top. I got a medium corset (following size chart and crossing my fingers as I've never worn a cheese before) I'm a 34D, 100-118lb, 4ft 10in. I had to loosen the top of the corset a lot. While the bottom can be tightened quite a bit. This corset is so comfortable. (A feature I didn't expect) beautiful material. I'm in love and So excited to showcase this gorgeous piece.