Description
Woolen felts absorb and release water vapor to maintain equilibrium with thewater content of the surrounding air. The felts have a hydrophilic,water-absorbing interior, and a hydrophobic, water-repelling exterior. A thinprotective membrane, like a wax covering, is bonded to the outside of eachfelt. Even chemicals like dry-cleaning fluids wont remove it. The membrane iswaterproof, but microscopic pores allow water vapourto pass through, like smoke through a screen door.

Other Woolly Facts
1.When you move from a warm, dry atmosphere to a cold, damp one, wool releasesheat slowly, buffering you from the temperature drop. (Cotton and syntheticscool immediately, and can make you feel chilled.)
2. Wool does not absorb oils or perspiration, so it wont host odour-producing bacteria, making it naturally odour resistant.
3. Long, fine fibres (particularly those in merinowool) are soft next to the skin.
4. Wool doesnt cling to skin, and wont pick up dirt particles as easily asother fabrics.