This pillow is made with a 300 thread count 100% organic cotton outer fabric and pure PLA batting on the inside, providing a healthy, resilient and supportive feel. PLA is a non-toxic, sustainable fiber derived from 100% renewable resources. In fact, Naturepedic formulates its PLA exclusively from non-GMO sugarcane. PLA is resilient and has wonderful moisture-wicking properties. Best of all, there are no harmful chemicals,  no petroleum, and no chemical smell!