geonet is a drainage geocomposite for planar drainage. It is made by thermobonding an HDPE geonet drainage core between a polyethylene membrane film and a non-woven Geotextile and performs as a separation, filtration and protection layer. 

Both side adhesived geotextile, it's have all-round property. for example, "filtration-drainage-ventilate-protextion".therefor, it's the best drainage material at present.

The geonet drainage core is formed by two sets of parallel ribs overlaying each other and integrally connected to produce a net of rhomboidal shaped apertures.