So last season I got the L1TA Patience Corduroy pants in an XS and they were still pretty roomy and borderline big. (I'm 5'8", 130 pounds). So this year I ordered the Heartbreaker pants in an XS assuming that the fit would be the same, since its the same company. Not so much. These run really small, or maybe just true to size, since an XS is pretty small for someone of my size. Either way, I could barely get them up over my hips and could not have buttoned them if i tried. I just re-ordered them in a Medium, which I'm hoping will be roomy enough for layers underneath but not so big that they lose the tailored look that drew me to them in the first place. The XS seems to be made for probably a young teenager with no hips or curves. The cut of them is really cute, and they're pretty thin but seemingly still warm. I'm looking forward to getting the mediums.