High Quality Content by WIKIPEDIA articles! Rip-stop nylon is a light-weight nylon fabric with inter-woven ripstop reinforcement threads in a crosshatch pattern.The material comes in many different colours and sizes, including thickness. It is woven with coarse, strong warp and filling yarns spaced at intervals so that tears will not spread. The same effect can be achieved by weaving two or three of the fine yarns together at intervals. It is produced in a range of weights and textures, waterproof, water resistant, fire resistant, zero porosity (will not allow air or water through), light, medium and heavy weight. Textures range from soft, silk like to crisp or stiff ones that sound like a paper bag when they are moved.