What is DWR? = Durable Water Repellent Coating - Snowboard/Ski Pants
DWR is a durable water repellent coating used on some snowboard and ski pants. DWR has revolutionised winter sports outerwear because it allows snowboard and ski pants to use materials that would not otherwise have been considered waterproof. Gone are the days when, to stay dry, you needed to wear a a crispy hard nylon shell.
DWR - 2 BIG Benefits
Water beads up and rolls off .
So, next time someone tips a glass of vin chaud over you in an apres ski bar, you should be fine!
DWR really comes into it's own when used on premium high end waterproof and breathable fabrics such as Goretex to prevent the outer layer of fabric from becoming saturated with water. This saturation, called 'wetting out' or water logging and has 2 serious consequences:
It reduces the pant's breathability which, in turn, causes the wearer to become cold and wet. Because the pants can no longer breathe, it traps evaporated sweat which cools and condenses. In extreme conditions condensation can freeze making hyperthermia a real concern.
A saturated or waterlogged pants becomes heavy and the damp fabric sags and presses heavily against your skin or base layers. As soon as this happens, water ingression occurs and the wearer can become very wet, very quickly.