if you're interested in more slim fitting pants, I have a pair of levis x 686 514 collab denim snow pants. They're 3L, very waterproof, and probably one of the highest quality denim snow pants you can get. They are a medium, but I actually always thought they were a Large until I looked at the tag the other day. I felt like they fit more like a large.
Used a bit last season, but they're very durable pants. No cuts on the cuffs etc, just spots of wear on the denim that really have no affect on the pants at all.