Under Armour Cold Gear is best sh*t out there. It serves two really important functions. First, it keeps you warm. Second, even if you assume the fleece lining of your pants/jacket will keep you warm enough, the UA Cold Gear stuff will keep you
dry. If you get hot and sweat a bit from riding hard, the Cold Gear stuff pulls the moister away from your body, so that you don't get wet/cold/icy from it when you go into the lodge later on.
Feet: I have thin Hot Chilli socks. They work well. And yeah, avoid cotton. Go for synthetic.
Lower Body: My pants don't have fleece lining. On really cold days I wear UA Cold Gear, fleece pants, and my Special Blend snowboard pants. on Warmer days, I just ditch the fleece pants.
Upper Body: It's basically the same deal. UA Cold Gear (long sleeve mock tutrle), t-shirt, fleece (real cold days), and jacket. On Warmer days, I'll ditch the fleece.
Head: Goggles and some kind of head covering are a
must. The details of what are a little subjective. A helmet is always a good choice, and they are warm, and many have speakers for music. Good Stuff. If you don't want to rock a helmet, just find some kind of hat/beenie that your like. As for a face cover/mask, I almost always wear one, even on warmer days. Not only do they keep your face warm, but they keep your face from getting wind-blown/chapped, and keep snow out of your face/nose when you crash. On really cold / windy days, masks are a
must have. Here again, I'll plug Under Armour. They make a cold gear mask that is really light weight, really warm, and
much easier to keep in your pocket (if you don't want to wear it) than most other brands. However, it can be a little thin on
super cold days.
Oh, and mittens. They are much warmer than gloves.
