Wool – flexible fibre; may strain, therefore should be folded other than hanged; resistant to dirt; soft and smooth; good thermal isolation power; resistant to creasing; good absorption of humidity and perspiration; looses colour when exposed to direct sunlight; tends to form wool buds or fluff; low resistance to moths, other insects and fungus. Wool fabrics: pied poule, tweed, gabardine, prince of wales, crepe, knit.

Silk is other Natural Fibre.