How Do Woolen Clothes Keep Us Warm In Winter

So cotton clothes do not prevent heat coming out of our body.
How do woolen clothes keep us warm in winter. Wool is a poor conductor of heat. Woolens create a barrier to this and allow the body heat to stay in closer to the skin. Woollen clothes keep us warm during winter because wool is a poor conductor of heat and it has air trapped in between the fibres. People have been wearing woolen clothing for years in the winter months.
One is that wool is a bad conductor if heat. For instance if you put on a blanket it is trapping our body heat then the body heat bounces of the blanket and hits us that s how we keep warm. 2 the fleece or hair that cover us keeps us very warm. The clothes warm us up by trapping out body heat.
Second is that the air. Woolen clothes keep us warm in winter 1 wool absorbs moisture up to one third its weight. Cotton clothes are thin and do not have space in which air can be trapped. The woolen clothes keep us warm for two reasons.
Thus cotton clothes do not prevent heat coming out of our body. This air prevents the flow of heat from our body to the cold surroundings. The wool fibres trap the air in between them. Cotton clothes are thin and do not have spaces in their fabrics through which air can be trapped to keep us warm.
How do woollen clothes keep us warm in the winter.