Our kids often get snow in their boots. We just had over 20 inches of snow and every time they go play, they come in with cold, wet, snowy feet.
I had some left over shrink wrap from moving this fall. I wrapped it around their pants and boot (being careful not to wrap it too tight around their legs).
I am not sure if you can tell in the picture, but I wrapped it under their boot one time too so that it wouldn’t slide up. This turned out to be an essential step.
Tackle football in the snow was a strenuous test for this idea, and it held up well.
After 2 hours of play, all 3 boys had dry feet.
Here are a few affiliate links for the shrink wrap.
Have fun playing in the snow, and keep your feet dry.