Of course, since I got these it hasn't rained so I haven't had a chance to test out the waterproof capability of these.  But here's what I think about the pants currently.  Normally I wear a size 0 or 2 so I bought the x-small size and it fits great. It is a little snug when worn over jeans, but still fits and is wearable (I will say that I have larger legs than most people who wear a size 0 or 2 though so that has a lot to do with it being snug since it's snug mostly right around my thighs).  The legs open wide enough to allow me to put them on over my boots.  I do wish that these pants had a pocket.  Or at least had a waterproof zipper that would allow me to get into the pockets of the pants I'm wearing underneath.  These would be perfect if they had that.  Well, as long as they are actually waterproof that is!  I'll update when I actually get to test them out.