Clothing Answers

How sweaters keep warm us?

Well the material just reflects our body heat back at us, and it blocks wind...So that keeps us warm. also there is another thing, if you did not were them in a cold day all the warmth in you body will go away and you will be cold because all the warmth in you body has gone but when you were sweaters the prevent your warmth from going away

ps: black sweaters are very good.
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