ANTI BACTERIAL The material has an antibacterial treatment that reduces the growth of bacteria and unpleasant odors from human sweat. MERINO WOOL The material contains MERINO sheep wool fibres, which are characterized by excellent vapour permeability, antibacterial properties and a unique ability to thermoregulate: it warms at low temperatures and releases heat and moisture at high temperatures. It is finer and softer than regular wool, giving products a more pleasant touch without a "biting" feeling.