WeatherTech 44050-1-2 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. Once Fluids Become Trapped In The Reservoir, Away From Shoes And Clothing, They Are Easily Removed From The WeatherTech(R) FloorLinerTM DigitalFit(R) Over The Door Sill. No Muss-No Fuss. Rear FloorLinerTM DigitalFit(R) (Where Offered) Is Manufactured From A Proprietary Custom Blended TPO (Thermopolyolefin) That Is Wear Resistant, And Also Remains Flexible Under Extreme Temperatures.