CF200, also known as crushed neoprene, is a patented material made by DUI. DUI has a method of taking ordinary foam neoprene and crushing the cells thus removing all nitrogen bubbles. This eliminates the neoprene's thermal properties but also removes some of the other less desirable properties such as the breaking down of the cell structures causing the neoprene to degrade and as there are no nitrogen bubbles, the material in incompressible and not positively buoyant. It is also tough as nails.

The material is used in DUI's premium drysuits.

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