Oooh! I almost tried them on yesterday. I love them, too.
The reason I didn't try, Una, you will be glad to know, is I decided they were a useless fabric for my climate, at least for this time of year. I could see maybe getting one month's wear out of them. You can't wear tights underneath (I don't think) because they'd cling, and if you DON'T wear tights underneath, you would freeze your <insert word of choice> off in my neck of the woods.