Miragrid XT geogrids are high strength, high tenacity, high molecular weight polyester geogrids in a full range of tensile strengths to meet the most demanding applications of soil reinforcement. Miragrid XT geogrids are woven and then coated with a polymer coating to provide dimensional stability. Miragrid XT geogrids provide the highest tensile strengths of any reinforcement geogrid in the industry. The high molecular weight, high tenacity polyester yarns used in the Miragrid geogrids result in excellent creep resistance. The high molecular weight polyester fibers are also resistant to the potential degradative effects of hydrolysis and chemical attack for the range of pH normally encountered in reinforced soil environments.