Geocomposite iri mubice bitatu, bibiri cyangwa bitatu byamazi yo mumazi ya geosyntetike, bigizwe na geonet, hamwe na geotextile ihujwe nubushyuhe kumpande zombi. Geonet ikozwe mumashanyarazi menshi ya polyethylene, muburyo bubiri cyangwa butatu. Geotetile idafite ubudodo. Irashobora kuba polyester staple fibre cyangwa fibre ndende ya geotextile cyangwa polypropylen staple fibre nonwoven geotextile.