Geotextile liner is a kind of composite materials that combined the geotextile and many kinds of liners. It is widely used to stabilize the foundation. We have three kinds of geotextile liners. Geomembrane liners, also called impervious membrane, is made of geotextile and geomembrane. It has good impervious performance. Geosynthetic clay liner is also named sodium bentonite composite waterproof pad. The high swelling sodium bentonite is filled between geotextile and non-woven fabric make it also has good impervious performance. Three dimensional composites drainage network is made of three-dimension geonet and two pieces of geotextile. It has good filtration and drainage functions. You can choose suitable one depends on your needs.