GroGreen GGS 6 OZ NW 07530T 5" x 300' GGS 6.0N Non-Woven Geotextile Fabric - GGS 6.0N is a needle-punched nonwoven geotextile made of 100% polypropylene staple fibers, which are formed into a random network for dimensional stability. GGS 6.0N resists ultraviolet deterioration, rotting, biological degradation, naturally encountered basics and acids. Polypropylene is stable within a pH range of 2 to 13.