Tri-Axial Geonet is a synthetic drainage materials manufactured from a specific grade of high-density polyethylene (HDPE) resin, designed to transmit fluids and gasses uniformly under many field conditions. Tri-Axial products consist of vertical central HDPE strands with either horizontal top strands (T-shaped) or horizontal top and bottom strands (box-shaped) for improved performance. Tri-Axial products provide the highest transmissivity performance under loads less than 5000 psf.