Cushion Source primarily uses Sunbrella solution-dyed acrylic fabrics because they are designed for easy maintenance and many years of use. Solution-dying is the process of adding color to acrylic fibers during manufacturing while they are in a liquid state. This characteristic of acrylic fabrics is the key to locking in color, easy cleaning and long life. For this reason, acrylic fabric offers incredible resistance to stains, weather and wear in any application. Furniture grade acrylic fabric carries a five-year warranty against loss of color and strength.