Wool is an excellent thermal regulator that allows to maintain an ideal balance between the body and the environment. Through a process called "absorption heat" the tissue absorbs moisture and retains heat when temperatures are cold and moisture. On the contrary, when it is hot through the process "evaporation" wool frees moisture giving the body a sensation of freshness. It is a very good thermal insulator since retaining among its interstices (fiber) a large amount of air hinders thermal conduction.
All these attributes make wool to give us a warm sensation when it is cold. On the other hand, when it is hot by having the capacity to absorb and release controlled amounts of moisture, it allows to keep the body dry and fresh.
The property of moisture absorption and release added to the fact that it is a spongy tissue that does not adhere to the skin, leaves a layer of aeration between this and the garment, allowing a high breathless power.
