These tights might not be made for sub-arctic temperatures, but they sure got me through 25 degrees, high wind, and hail. They kept me warm, felt virtually no wind, and didn't build up sweat! They are kind of expensive but at least you get what you pay for.
The pad is pretty comfortable for mountain bike rides in the 60 mile range over really rough terrain (AZ mountain ranges). They hold up great and will definitely buy another set in the future when they finally give up the ghost.
The contest version of these are also very good but the pad is not meant for the longer distances!