Wool is good material for clothing and fabrics. In comparison of various fiber cotton can withstand being bent 20,000 times without breaking, silk break after 2,000 bends and rayon can only be bent 75times. While wool can withstand 20,000 times without breaking. If given good care wool yarn knitwear or garment is hard wearing while remain good appearance. Wool yarn has good elasticity which can stretch and take much pressure without breaking. When the pressure is released the fiber can spring back and therefore the wool yarn garment can retain its shape. The natural elasticity also make wool yarn fabric resistant to tearing.
Wool material has good thermal insulation ability. It can trap heat still or dead air within the fiber therefore it can keep heat close to body. Wool yarn garment is also water repellent to certain degree. Small amount of water, rain or snow will stay on the surface or run off the fabric. Wool keeps you warm when wet since it can retain 80% of its insulating value. So wool is widely used to be spinning into yarn to make sweaters or garment or blended with other fiber to make clothing.