Poplin by Shaw is made from Anso Caress Nylon, all the softness and sophistication you love now in your carpet. The Shaw Caress collection is made with soft Anso Nylon and enhanced with Shaw's patented R2X®. Anso Nylon with Shaw's R2X has become the standard of excellence in the industry. This patented, proprietary system provides superior resistance to stains and soiling through total fiber coverage, and unlike other treatments, protects longer after repeated cleanings. Patented and exclusive to Shaw carpets, the R2X® system produces total fiber coverage, protection from the top to the bottom of the yarn--keeping spills on the surface.