I was a bit confused as i had read mostly great reviews but also one of the reviews was negative about this being a natural product so i contacted the manufacturer and they were very gracious in taking time to answer my questions. The fabric used is organic cotton, and the backing is a non off gassing poluurethane laminate that has no odor. The manufacturer emailed me copies of testing reports by SGS that confirm no Phthalates, metals, or other voc's. Based upon this i purchased the mattrress pad and could not be happier. It is soft, has a great pattern, and waterproof. Everything about it is high quality and it is a perfect solution for our baby's mattress.