These are the best cold-weather fleece-backed pants I found. I wore them by themselves on long hikes in temperatures between 10 and 15 F, and never felt cold. I ordered two more, in the next size (I'm an XS, which they were out of); the S proved to be larger than I thought, more like a M; keep this in mind if this would disturb you (it didn't disturb me). I'll wear them to death:-)!!!
This review was written in the old system and had content requirements that are different than reviews written today.