I gave this to my husband for Christmas and he loves them.
I was a bit skeptical because they are thin, but hubby is telling me they are very warm.

I washed them today and they kept their shape and size, but I am not going to put them in to the dryer. They are thin enough to dry over night or in a few hours anyway.

The pants do not have a slit for the manly parts up front, so be aware that you will have to pull down the front.

Hubby is a suit guy and wears them in a cold office during the day. He is saying that they are very comfortable.