WeatherTech 447051 FloorLiner The WeatherTech(R) FloorLinerTM DigitalFit(R) Accurately And Completely Lines The Interior Carpet Giving A Patent Pending High Density Tri-Extruded (HDTE) Material Allows For A Rigid Core For Strength While Offering Surface Friction To The Carpet, As Well As Tactile Feel To The Surface. Advanced Surfacing Creates Channels That Carry Fluids And Debris To A Lower Reservoir With Further Channeling To Help Minimize Fluid Movement While Driving.