This is a warmer version of thermoactive underwear for use on the coldest days. It is made of thicker fabric with unique characteristics. It even better maintains body heat at lower temperatures and prevents sweating. The fabric used includes ThermoCool, which is a combination of CoolMax and Thermolite fibers. This means that during the movement moisture is instantly lead away from the skin surface to the outside, it breathes very well thanks to the air tubules system and when the warmed body stays still, Thermolite stops the heat generated by the body, preventing it from cooling down. The silver ions contained in the underwear provide durable antibacterial properties
