What is the amount of insulation that should be present in winter boots?

The amount of insulation in winter boots usually varies. Some winter boots contain 200 grams of insulation, some contain 400 grams while others contain 600 grams of insulation. If the winter boot is used during moderate winter, then 200 grams of insulation is enough. When the winter boot is intended for wearing in extremely cold temperatures, then you should prefer winter boots with 400 grams of insulation. And if the boots is to be worn during heavy snowfall then 600 grams of insulation is must in your winter boots to provide you maximum warmth and comfort.