Same deal as the shirt but less flexible, IMO, because warm leggings don’t fill as much of a use case for a typical backpacker doing longer days / less camp time.
These have been stellar for winter hiking + snowboarding as a warm when wet active layer.
I prefer a very thin or no bottom layer during the 3 season hiking window so these really only fit 30* or lower trips (which seem to be happening more and more so great).