This document provides an overview of a technical textile course project on geo textiles. It discusses the background and initial considerations of geo textiles. The typical geo synthetic materials are geogrids, geonets, geotextiles, geomembranes, geosynthetic clay liners, and geocomposites. The main polymer families used for geo textiles are polyester, polyamide, polypropylene, and polyethylene. The document also discusses the basic properties, functions, types, applications and conclusions regarding geo textiles.