Gusya ibyuma na plastiki byitwa geogrilles yicyuma-plastike, ni insinga zikomeye zicyuma (cyangwa izindi fibre), nyuma yo kuvurwa bidasanzwe, hamwe na polyethylene (PE), hanyuma ukongeramo izindi nyongeramusaruro, binyuze mumashanyarazi kugirango ube umwenda ukomeye cyane. , hamwe no kwikuramo bikabije, bizwi kandi nkimbaraga zo hejuru zishimangira geostrip.