TenCate Geolon® Robulon PE 1000 is a high strength geocomposite for slope erosion control purposes. The product is made of a highly durable combination of PP and PE, and has a 3 dimensional structure for optimum soil retention purposes. The woven base layer, which has a very stable pattern, has openings large enough to allow roots to establish. At the same time the voids are not too large, preventing wash out of fine soil particles in the early stages of installation, before vegetation has reached its optimum situation.