BedRug Bed Mat BMC99SBS fits 99-07 SILVERADO/SIERRA CLASSIC 6&#39;6" BED Designed to fit truck beds without an existing bed liner and will also fit over a spray-in bedliner Slip and skid resistant fiber - 100% Polypropylene  ultra tough work surface Superior comfort  cushioned and knee friendly Waterproof, chemical, & stain resistant. Designed for exterior use  will not absorb water Made in the USA