This BedRug Mat is designed specifically for trucks that have an existing spray-in liner, featuring a 3/4 inch thick custom molded foam backing to provide a smooth work surface, using only hook and loop fasteners to install without needing to drill holes into your truck bed, much like the BedRug, the BedRug Mat is made to fit your specific make and model, filling in the ribs and contours of the truck bed to provide a smooth, void free loading surface. It will give you the look and feel of carpet in an ultra-tough 100 percentage polypropylene (essentially plastic) product. This mat will protect your truck while standing up to whatever you can throw at it: from mulch to bleach. With its cushioned foam non-skid surface, it will keep everything in place while protecting your cargo and your knees. The BedRug Mat material is fade and UV resistant. Made of foam similar to that used in life jackets, it doesn't absorb water and will not mold or mildew. Water will simply run off the surface, out the factory drain holes in the truck bed and will dry in as little as 20 minutes. Just clean it with a hose, power washer or vacuum and your BedRug Mat is good as new.