Faced the trouble of coffee spills, traces of lipstick, food stains or the alike adorn your mattress? Natura could solve your trouble. Now you may wipe off any remaining dirt with a damp cloth. WSR- an effective finishing that is guaranteed 100% stain repellent which adopt in Natura Hydro Series mattress. WSR is based on C6 chemicals that are much more environmentally friendly and at the same time have excellent stain repellent qualities.In order to be better, multiple tests at the Archroma laboratories have proven the efficiency of WSR against coffee, wine and ketchup stains. Now, you may enjoy your life on Natura “stain-free” Hydro Series Mattress.