Just a couple of minutes of time and minimum costs will protect their shoes from slush, salt divorces and other troubles. Of course, running on the puddles even in the "pumped" kids ultimately not recommended. But water-repellent properties in reasonable limits will easily provide following things:
1. Beeswax or natural wax candle;
2. Hair dryer;
3. Rubber gloves
Make any shoes moisture-repellent as simple as to join the puddle. Take the wax plate or wax candle and properly selected for the experiment pair over the entire surface. Repeat the layer or two. It is better to work in rubber gloves so that then I did not have to go long and need to wash the skin of the hands from wax.
Now take the hair dryer and dry your shoes so that the wax is frozen. Pay drying at least five minutes in high temperature mode.
Go outside and experience new properties of old shoes in practice.
And here is the video from the authors of the instruction - two Russian guys with a charismatic accent.