Looking for Darlexx?
It is a sports performance fabric used in gloves, boots, wet suits, ski apparel, clean rooms, and in medical applications. It was designed to keep a person "warm when the environment is cold and cool when the environment is hot". http://www.darlexx.com Darlexx is breathable, windproof, and waterproof.
With hoods, breathing holes are advisable due to the impermeable nature of Darlexx.
Source: Wikipedia > Darlexx
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