Get your normal size and just take the pants to a tailor to move the button over. These pants fit like a DREAM!!! It’s just the button placement is weird: it’s too far to the right relative to the zipper placement which is why the waist is too tight for most people. It’s just…off. No idea why they made that design choice. Getting a size up will result in baggy pants which is in but disappointing when you want a more fitted look The button isn’t easy to remove so don’t try and do it yourself unless you know what you’re doing! I can still button mine when standing up, but have to unbutton to sit down, lol. Worth it though because the pants are sooooo cute and flattering on. I’m 5’7”, 175 pounds, hourglass shape (not too hippy but my butt is big).