No matter what the winter temperature is or what the snow reports are, America has experienced every level of winter activity. We, at PolyProThermals, wear our own products for cold weather running, cold weather jogging, & for cold weather survival clothing, because it is the best thermal underwear available. We wear them in the sleet, slush, light snow, & deep snow. We like cold water rafting, white water rafting, white water kayaking, & occassionally ice hockey, but most of all, we like to stay warm and dry & our poly thermals work. Take it from us, our low cost thermal longjohn polypropylene thermals are one of the best freezing temperature survival tips you can discover and they may save your life or someone else's! Don't be caught in the cold without the best priced thermals around!