I bought these in Large the waist just barely fit and the pants were huge. If I went down a size the waist would be too small for me to close the button. I lost a lot of weight so I'm still trying to figure out my sizing with FN again. Bust 35 Hips 40 waist 33 and I weigh 147lbs. With those measurements I should be able to fit in a medium, but the waist is too small on these pants. They have zero stretch.