Wool is well known for its warmth, but what few people know is that wool is frequently used as insulation against heat too! For instance, the Bedouin tribes in the Sinai wear heavy wool robes in order to protect themselves against the smoldering heat in the desert. Wool keeps you warm when it’s cold and keeps you cool in the heat. Wool fabrics insulate much better than other natural or synthetic fabrics and transmit less heat or cold. You can wear wool in bitter cold or stifling hot circumstances and still be comfortable.