I have a pair of barely used Marker Ski pants, black, size L (which fit me back when I was 6-1 and 185 lb, but no longer since I got to XL sized 225lb). I probably wore these 5 days tops. They still look new. They are circa 2001.
They have full length side zippers with flaps, internal boot gaiters, scuff patches on the inner ankles, and are constructed of waterproof/breathable fabric (nothing fancy like gore-tex, just nylon with a coating or membrane on the inside). They also have a nylon inner liner liks most pants.
These were actually great pants, and I was always bummed I couldn't find another pair in XL. I paid about $100 for them. You can have them for $35 if you want, including shipping.