Soft textured heatset polypropylene pile rugs. Woven in a beautifully soft 13mm polypropylene pile, these stylish rugs are easy to maintain and suitable for indoor use. Use of a rug grip is recommended to prevent slippage. Do not iron. Soft textured heat set pile. Surface Shampoo. 100% Polypropylene Pile. Layering neutral tones in semi-plain designs to bring a sense of calm to your home. Woven in a beautifully soft 13mm polypropylene pile, they are easy to maintain and suitable for indoor use. Use of rug grip is recommended.