These leggings are the softest merino, and they're thick. They really keep you warm, plus the pattern is really cute. I wound up getting an XS, I'm 5'4" and 105 lbs. I have pretty thin calves and they're a little on the loose side around the calves for me, but if you have normal sized calves I'm sure they'd be a perfect, snug fit. I love these and am glad I got them! A high-quality piece I'll have for a long time.