It's hard to find good long underwear, especially for women; they're either too flimsy, silky, and "feminized" with bows or they're kind of generic and blah like these. I don't like how wide the neck line is on the shirt, the bottoms are too tight at the ankle, and the fabric isn't very soft and is actually kind of itchy.
They are nice and thick, though, and they seem to be holding up well to machine washing.