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Paratex Dry is a 100% waterproof fabric (hydrophilic polyurethane coating) with a hydrostatic head in excess of 5000mm (items with a hydro static head in excess of 1500mm are generally considered waterproof)
Detailed informationWhat it is: 100% waterproof fabric (Hydrophillic Polyurathane Coating) How it works: Closely constructed fabric with a ripstop construction. Teamed with a Hydrophillic Polyurathane (PU) which transfers water vapour chemically from the inside to the outside (due to the temperature differential between the inside of the product and out) Features:
Where it is used:As a breathable Bivvi Bag (Waterproof sleeping bag outer) or a shell fabric in waterproof jackets. It is important to note that as this solid coating air can not pass so care should be taken not to completely seal any bivvi bag system to prevent suffocation.
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The performance of Ventile® fabrics results from the properties of cotton fibres which expand when they come into contact with water. The combination of fibres, yarns and weave causes expansion in a uniform manner. This allows the interstices within the fabric to close up, preventing the further passage of water.