Woolen clothing is preferred throughout the cold season because it traps more air. We already know that air is a poor heat conductor, preventing the body's heat from escaping.
As a result, when wearing woolen clothing, we became extremely heated. Dark-colored clothing is also recommended because it is an excellent heat absorber.
Woolen clothing keeps the body warm and protects it from chilly winds since it is a good insulator and a poor conductor of heat.