Why Wear Wool
Why to wear wool over any other fibre comes to the mind so wool is only natural fibre that has self water equilirations means it wades water away from body in process of drying it also performs better in heat as being breathable
Wool is self water wading
Typical wool can adsorb 30% of its weight in water without feeling wet because the adsorbed water is trapped inside the fibers.
And again (sorry) the outside of a wool fiber sheds water ... so even when wool is literally soaking wet, it will quickly dry off on the outside, and feel dry to the touch, because the water is only held inside the fiber. (But if you submerge some WeatherWool in water for a few minutes, almost none of the water will be taken inside the fibers -- it won't soak -- and the wool will be very quickly dry.)
Wool is also a hygroscopic material. That is, when wool is completely dry it will adsorb water from the air until it comes to an equilibrium with the surrounding air. This process of ‘equilibration’ with the surrounding air is called ‘conditioning’.
Inside the wool fiber, water vapor binds to the cortex, producing the heat of adsorption. Again, all adsorption is exothermic ...heat generating.
The body burns a lot of heat to turn liquid water into vapor ... using up excess heat is the reason for perspiration. When perspiration vapor is adsorbed within a wool fiber, and then condenses, it slowly releases the heat of condensation ... the heat the body expended to create the warm vapor.
Water molecules are polar, having both a positive and negative side. Once inside the wool fiber, the poles of the water molecules form new bonds with the wool, and the creation of these new bonds releases small amounts of heat ... the heat of adsorption.
Why We Get Cold!
Our skin radiates heat into the air. That warming air, which is lighter than cold air, rises up and away from the body. This convection increases with wind. Even in mild temperatures hypothermia can set in.
Heat loss is also exacerbated by metals and water, which conduct heat quickly. Moisture greatly quickens our loss of heat. Wet skin loses heat up to 25X faster than dry skin. (Wool can keep our skin dry by capturing the vapor of perspiration before it condenses into what we generally think of as sweat.) In the cold, avoid getting sweaty and avoid jewelry. Sit on a fallen tree rather than a stone or cold ground. And rest your feet on a large branch or thick moss if possible.