Whether you’re an avid skier, an outdoorsy type, or simply cannot stand the winter months, chances are you’ve had to google thermal underwear at some stage in your life.
The world of thermal underwear – or long johns as they call them over in the states (after the 19th Century boxer John L. Sullivan) – can be slightly confusing. They come in all sorts of materials, sizes, lengths, and types that can become so muddled together that you forget what you were looking for in the first place.
