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Hipora consists of a three-layer microporous silicon coating structure. Some types are impregnated with microscopic aluminum flakes to enhance heat retention characteristics.
The first layer prevents water from passing through. The pores are less than .5 um in diameter.
The second layer is a honeycomb structure that lets moisture in to let it expel through the first layer.
The third layer is very dense for added protection against water. This is the layer closest to the skin.
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