Drainage Geo-Composite is a geosynthetic drainage system designed to collect, convey, and discharge water within civil engineering and construction structures. It generally consists of a geonet, geospacer, or drainage core combined with one or more geotextile layers.

The geotextile layer acts as a filter, allowing water to enter the drainage system while preventing fine soil particles from clogging the drainage core. The internal drainage core provides a pathway for water to flow toward the designated drainage outlet.