Wool has the ability to absorb 30% of its own weight in moisture without feeling wet. The wool fibers transport the excess moisture from your skin into the air like a vapor. This process is called wicking.
Wool is an active fiber with the ability to regulate your body temperature. It keeps you warm when it’s cold and cools you down when it’s hot. When the body temperature rises wool wicks away the moisture from your skin to evaporate.
Sweat itself does not smell. Body odor occurs when bacteria thrive on your skin. The bacteria from sweat prefer a humid environment. Wool fiber’s ability to absorb large quantities of moisture, keeps your skin dry and prevents sweat to build-up. These properties make the habitat less suitable for bacteria.