I'm just using a thin pair of snowboarding pants. water proof so doesnt let any cold and damp air in. Have a zipper on the sides of both legs so easy on easy off. But do wrinkle my slacks when I go to work.
What are everyone looking at winter stuff for? Its summer time!!!!
Seriously though, I have my RST full leather gear and the winter wind cuts right through it. I where a pair of compression sports pants, then thermal leggings on the bottom half. And for the top I have a singlet, longsleeve t-shirt, then a thin Microfleece jumper and a neck warmer to keep the chill out!
for my winter gear i have a Master V suit...which is a proshell gortex, so the goretex is weaved within the outer material....and the abrasion layers are just as resistand and strong as leather of 3 times the weight!...