Made from high quality non-woven polypropylene fibers. Holds soil aggregate in place. Helps to control weeds (not ideal for above ground, high traffic areas). Great for filtration, reinforcement, separation and erosion control. Helps to prevent clogging, extend drainage system life and increase performance. Combines high water flow rate and high tensile strength to provide excellent hydraulic properties. Ideal for french drains, trench drains and blanket drains.