MEC T3 underwear.
Shell pants and jacket...if its lower than -15C ill throw on an extra shirt.
ALWAYS my icebreaker belaclava....no exposed skin on the face makes for no sun/windburn (so the boss doesnt know what you do when youre "sick", lol)
If im cold, im not throwing down hard enough! The best way to keep warm is to shred like a madman!