I love my CW-X tights:

http://www.cw-x.com/ss/products/womens/w_insulated

Besides being wind resistant, water repellent, and insulated, they are UPF 50+ rated (sun protection is most important to me).

I have the Insulator Stabilyx tights and the Insulator Pro tights and love them both. They are pricey, but oh so worth it. I hand wash and hang dry. Unfortunately, TE does not carry these. I had to order them elsewhere. I am 5'2" and the xs size fits me perfectly.