Honestly, I haven’t.
These thermal clothing are very trendy nowadays, they vary from men’s clothing to ladies’ apparel, from trousers to pants, from footwear to slippers; and to hats, gloves and scarves! It just crossed my mind… do they also design and make thermal ladies underwear? What do you think?
Now, I just stumbled on this site specializes in selling thermal clothing that they make. They say that they are using Thermolactyl, is a kind of fiber that when used in clothing and worn keeps the person wearing it hot… it has insulation qualities. They’re offering different grades or levels of warmth of clothing that suits your environment. If you are experiencing milder winter season, a lower grade of Thermolactyl in the clothes is okay, but for extreme cold, you should choose a higher grade.
You know, it’s a good thing they have discovered this fiber… you don’t have to put on a lot of layers of clothes just to feel warm on cold, cold days.