Not bad.  Bottoms have a nice silky feel, fairly thin but warm for their size.  Sizing is a little on the large size.  I'm 5'3" 125 lbs and bought a small; I was expecting them to be skin tight (as they should be) but they ended up being a little on the large size.  This is awkward if I want to wear another pair of long underwear over them, but if I am just wearing these it provides a lot more movement.