These pants are great! I was looking for pants that were fitting but above all else warm! These are perfect, I am 5'5" and weigh 135 and I bought a Small in bright white. I have some room if I want an extra layer, but they don't look baggy or "guyish" at all :) I like the slim fit look, and these definitely have it even in the "sig fit" only they don't sacrifice the warmth factor.
They are also a great length with my boots on! (another important detail) Love them! After trying on many different brands, Burton is always the best !!