The 7" FeatherTouch I #624 21x28 chair ottoman Natural futon mattress features a soft surface feel with four 2" layers of high resiliency convoluted foam and 20 lbs of Gold Bond Joy cotton batting. This chair ottoman futon mattress includes 4 pieces of convoluted foam and is made from a custom-blended "JOY" cotton batting for resilience and longevity.With dimensions of 21" x 28", this futon ottoman mattress provides maximum comfort. The Gold Bond uses a custom-blended "JOY" cotton batting that allows for easy folding into any futon frame.The FeatherTouch I folds easily into any futon frame and is available in various sizes and colors, including the 21" x 28" size with a thickness of 7 inches. The mattress fabric content is made from 55% Cotton/45% polyester materials.