Military Weight Thick Polypropylene Socks.
These socks are made from the same soft polypropylene fleece material as our thicker military expedition weight thermals. Guaranteed to keep your feet toasty, these socks are designed as a boot sock. They are great for winter expeditions, snow skiing, snowboarding, hunting, snowshoeing, etc. Polypropylene fabrics transport the moisture (sweat) away from your body to the outside of the layer, reducing evaporative cooling and keeping you dry and comfortable.