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Wool Material Shrinking from Heat

  1. Aug 11, 2010 #1
    I have a hat, made from what I believe is rabbit hair (not leather, just the hair). I sometimes leave it in the car. I have noticed that if I leave it in the car for a long period, when it is hot, the hat shrinks.

    I have 2 questions.
    A. Why does this shrinking happen?
    B. Is there any way to prevent this? One idea was perhaps introducing humidity into the car or container that hold it. Any other ideas?

  2. jcsd
  3. Aug 11, 2010 #2


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    Last edited by a moderator: Apr 25, 2017
  4. Aug 12, 2010 #3
    Thanks for reply. I dont think it is that simple. If it is just humidity, then when brought back into regular weather, it would expand, which it doesnt.
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