Pertex is a light but strong fabric which is often used for sleeping bags, down jackets or other shell garments.
Pertex was developed by Pertex.com and is a wonderful fabric used by outdoor clothing manufacturers. It is really useful for garments which need a strong 'shell' fabric like down jackets, and sleeping bags. It is breathable and windproof and has a ripstop surface. It is really lightweight and water resistant. As Pertex wicking ability works by capillary action is it not a good idea to give the fabric a waterproof coating yourself as this would block the ‘way of escape’ for the unwanted moisture evaporating from the surface of the fabric. Some Pertex garments or equipment are pre-treated with DWR.
Pertex continue to develop the fabrics technical capabilities and have introduced Pertex Classic which is extra light and Pertex Quantum, which is extra strong and 'down proof'.