I have the insulated version of these (X L short) and also last year's model which has wider legs (L short). Gained weight and got the big ones this year but am getting back into the older ones now. In between, I tried the XL short in the new model but found the legs were much more fitted, so while the XL insulated pants were starting to swim, these were too tight. They look great but... and that's one very big butt, I guess.
FYI, I have a small waste, wider hips and pretty large thighs, your classic pear, sadly. Also I am short. Nature works in mysterious ways.
Thank you TNF for at least making a short!