These boots are really great. They perform fabulously in snow and are very warm. I think they could also be used on slushy days or even as rainboots. My son walked all around in an ankle-deep puddle for quite a long time, and when I checked his boots, there was only a very tiny bit of wetness on the inside seam at the very end of the interior footbed (way past the toes, so far up that his toes would never be there), and I think a little bit of waterproofing spray would take care of it. His old snow boots, and even his rain boots, would have totally flooded in even the smallest of puddles.