These pants are sick! They look like a pair of black denim skinny jeans but they are function-able in the snow! I was concerned that they would look funky fitting over the boot, but they fit just fine and give a slightly baggy look around the foot so it doesn't look like they are too short or too small.
The only thing I had a problem with is that I have thick thighs and although they say "slim-ish" they are a slim-fit pants so I had to return my pair for a size up. But if you're pretty thin, you should be fine.
They don't have a ton of stretch so be weary of ripping them if you're gonna be running around or something like that. But the construction is nice. Haven't been able to take them out on extremely cold days or on slushy days, so no comment yet there, but I would recommend a light-mid underlayer if you are going to take them out between 15-25 degrees (F).
All in all, awesome pants!