I love these pants.  They fit over my jeans and other pants with room to spare.  They are very warm and keep me dry.  I highly recommend them.  They are well-made.  You will definitely be warm and dry wearing these pants.  I haven't done any sports with these on but have gone for walks in the snow and in the freezing cold weather and I was more than warm and I stayed completely dry the entire time.  I even made snow angels.  :)