Thermal active top for all conditions
The US lvl 2 top is designed to serve as a base layer on cold days. Made from a blend of polyester and elastane, this combination ensures the underwear is lightweight and flexible, and provides excellent insulation under any condition. The top quickly warms the body, while the breathable fabric and snug fit facilitate effective moisture wicking. Thus, the US lvl 2 underwear maintains thermal comfort on cold days, and its proper thermoregulation prevents overheating, for instance during more strenuous mountain treks.
