Premier Custom Fit 4-piece Set Carpet Floor Mats for Kia Optima (Premium Nylon, Black) Custom patterned for a perfect fit in cars trucks SUVs and vans Protects vehicle interior from daily dirt and grime and are easy to clean Luxurious 18 ounce 100 percent nylon carpet fabric that resists wear and a heavy nibbed rubber backing that is waterproof and prevents slipping For vehicles with security hook the safety grommet is pre-installed in the mat Choose from 11 colors in a variety of configurations for front rear cargo area and trunk