It is woven geotextile made by polypropylene（PP） monofilament. It is a permeable fabric material. It offers a combination of high strength and excellent hydraulic characteristics. Woven Monofilaments are made from extruded monofilament (like fishing line) yarns woven into a screening. Often times they are calendared, meaning a finishing heat is applied as it comes off the loom. These are mainly used as filter fabrics in marine applications with fine grain sands, such as seawalls or bulkheads and shoreline rip-rap applications; or under bedding stone in highway rip-rap applications.