I recently purchased these boots for my pre-schooler to use during a trip to deep snow in the mountains. They fit well, were fairly simple to get on and off, (they have no tounge like some shoes and boots and have a pull string instead of laces that tie, which helped a lot), and kept my son's feet very warm and dry through hours of sledding and snow-shoeing.

I recommend using high socks of some kind (we bought high wool socks and they worked well) for use with these boots. At first we used the usual cotton (Gap brand) socks that my son usually wears and they didn't work well as the socks fell down a lot and were annoying. However, once we switched to the high wool socks (high enough to come over the top of the boot) we had no problem and the boots worked beautifully.